SCDL - Data Mining

SCDL – 4th Semester – Data Mining

LIST OF ATTEMPTED QUESTIONS AND ANSWERS

Select The Blank Question Semantic integration of ________ genome database is the important task of DNA

analysis. Correct Answer

Heterogeneous and distributed

Your Answer Heterogeneous and distributed

Multiple Choice Single Answer Question Main advantage of following which method is it's fast processing?

Correct Answer

Grid based

Your Answer Partioning based

Select The Blank Question With the widespread option of ________ real-time connection is viable for data

warehouse. Correct Answer

TCP/IP

Your Answer HTTP

Select The Blank Question ________ are responsible for running queries and reports against data warehouse tables.

Correct Answer

End users

Your Answer End users

Multiple Choice Multiple Answer Question Advantages of Wavelet transformation for clustering are :-

Correct Answer

Unsupervised clustering , Detection of cluster for accuracy , Clustering is fast

Your Answer Unsupervised clustering , Clustering is fast , Decomposition of cluster for accuracy

Multiple Choice Single Answer Question Query tool is meant for :-

Correct Answer

Data acquisition

Your Answer Information delivery

Multiple Choice Single Answer Question Which of the following function involves data cleaning, data standardizing and

summarizing? Correct Transforming data

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Answer Your Answer Storing data

Multiple Choice Multiple Answer Question Which of the following clustering analysis method uses multiresolution approach?

Correct Answer

STING , Wave Cluster

Your Answer STING , Wave Cluster

Multiple Choice Single Answer Question Which type of following clustering computes augumented cluster ordering?

Correct Answer

OPTICS

Your Answer CLQUE

Multiple Choice Multiple Answer Question Time variant nature of the data in data warehouse :-

Correct Answer

Allows for analysis of the past , Relate information to the present , Enables forecasts for the future

Your Answer Allows for analysis of the past , Relate information to the present , Enables forecasts for the future

True/False Question The Structure that brings all the components together is known as Architecture.

Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question Data compression is to compress the given data by encoding in terms of :-

Correct Answer

Association rule , Decision tree , Cluster

Your Answer Bytes , Cluster

Multiple Choice Multiple Answer Question The different definitions of metadata are :-

Correct Answer

Data about data , Catalog of data , Data warehouse roadmap

Your Answer Data about data , Catalog of data , Data warehouse roadmap

True/False Question A distinct feature of DB Miner is its data cube based online analytical mining.

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Correct Answer

True

Your Answer False

Multiple Choice Single Answer Question Association rules mining is based on :-

Correct Answer

Clustering and Employing rules for classification

Your Answer Clustering and Employing rules for classification

True/False Question A distinguishing feature of Clementine is its object oriented extended module interface.

Correct Answer

True

Your Answer True

Select The Blank Question ________ includes Normalization and Aggregation as data preprocessing procedures.

Correct Answer

Data transformation

Your Answer Data transformation

True/False Question To remove noise from data is called as Smoothing.

Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Data matrix is :-

Correct Answer

Object by variable structure

Your Answer Object by variable structure

True/False Question Data updates are common place in an operational database.

Correct Answer

True

Your Answer True

True/False Question In decision tree internal nodes are denoted by ovals and leaf nodes are denoted by

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rectangles Correct Answer

False

Your Answer True

True/False Question From a Dataware house perspective data mining canbe viewed as an advanced stage of

Online Analytical Programming. Correct Answer

True

Your Answer True

Match The FollowingQuestion Correct Answer Your Answer

Disparate data Production data Query and analysis

Non volatile data Query and analysis Archive data

Data granularity Level of detail Level of detail

Data from external source External data External data

Multiple Choice Multiple Answer Question In physical design of data warehouse administration provides features like :-

Correct Answer

Avoiding reorganizing of tables , Support backup and recovery , Query processing

Your Answer Support backup and recovery , Manage store area , Query processing

Select The Blank Question ________ is the user who has system access privileges but no database administration

privileges as well as not for table and views. Correct Answer

Network administrator

Your Answer End user

Multiple Choice Multiple Answer Question Data mining Functionalities are :-

Correct Answer

Charactrization and Discrimination , Association Analysis , Cluster Analysis

Your Answer Association Analysis , Cluster Analysis , Time series Data Analysis

Select The Blank Question ________ dimension of database in which primitive level data are spatial but

generalization becomes non spatial. Correct Answer

Spatial to non spatial

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Your Answer Spatial to non spatial

Multiple Choice Multiple Answer Question Source Data Component may be grouped into following categories :-

Correct Answer

Production Data , Internal External Data

Your Answer Internal External Data , Analyzed data , Non Analyzed data

Select The Blank Question ________ technique is the statistical technique for analyzing data.

Correct Answer

Time series

Your Answer Time series

Multiple Choice Multiple Answer Question The strategies for data reduction are :-

Correct Answer

Data aggregation , Dimension reduction , Numerocity reduction

Your Answer Data aggregation , Dimension reduction , Numerocity reduction

Multiple Choice Single Answer Question Classification rules are extracted from

Correct Answer

Decision Tree

Your Answer Root-Node


Data Mining Knowledge discovery Knowledge discovery

Metadata Roadmap for user Details of summary

Data storage Data management Data management

Data staging Workbench for data Workbench for data

True/False Question Data cube stores multidimensional aggregate information.

Correct Answer

True

Your Answer True

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Select The Blank Question ________ is the method used to predict the value of response variable from one to more

variables. Correct Answer

Regression

Your Answer Regression

Select The Blank Question ________ databases are one of the most poplularly available and rich information

repositories. Correct Answer

Relational

Your Answer Object oriented

True/False Question COBWEB is a method of incremental conceptual clustering.

Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Many methods for data smoothing are also methods for data reduction involving :-

Correct Answer

Discretization

Your Answer Clustering

Multiple Choice Single Answer Question Dimensionality reduction reduces the data set size by removing :-

Correct Answer

Irrelevant attributes

Your Answer Irrelevant attributes

Multiple Choice Single Answer Question Effect of one attibute value on a given class is independent of values of other attibute is

called Correct Answer

Value independence

Your Answer Class Conditional independence

Multiple Choice Single Answer Question Which from the following are special programs that are stored on database and fired when

certain predefined action occurs? Correct Answer

Triggers

Your Answer Triggers

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Select The Blank Question A web server usually registers ________ entry for every access of a web page

Correct Answer

Weblog

Your Answer Log

Multiple Choice Single Answer Question Bayes Theorem is :-

Correct Answer

P(H|X)=P(X|H)(P)/P(X)

Your Answer P(H|X)=P(X|H)(P)/P(X)

True/False Question Visual display can help user to give clear impression and overview of the data

characteristics in a database. Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Which of the following is based on set of density distribution function clustering?

Correct Answer

DBSCAN

Your Answer DBSCAN

Multiple Choice Multiple Answer Question Metadata in a data warehouse falls into following categories :-

Correct Answer

Operational Metadata , Extraction and Transformation metadata , End-user Metadata

Your Answer Operational Metadata , Extraction and Transformation metadata , End-user Metadata

Multiple Choice Multiple Answer Question Knowledge discovery process includes :-

Correct Answer

Data Cleaning , Data Intergration , Data Selectin

Your Answer Data Cleaning , Data Intergration , Data Selectin

Select The Blank Question Human being have around ________ gene.

Correct Answer

100000

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Your Answer 1000000



Correct Answer

True

Your Answer True

Select The Blank Question Creating ________is violation of Normalization principles.

Correct Answer

Array

Your Answer Array

True/False Question Data Mining refers to extracting knowledge from larger amount of data.

Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Which of the following of Grid based clustering method explorates statistical information?

Correct Answer

STING

Your Answer CLIQUE


Correct Answer


Your Answer Catalog of data , Data warehouse roadmap , Brain of data

Select The Blank Question In ________ type smoothing, minimum and maximum values in given bin are identified as

bin boundaries. Correct Answer

Smoothing by bin boundaries

Your Answer Smoothing by medians

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Correct Answer

Data acquisition

Your Answer Information delivery


Correct Answer

True

Your Answer False

Select The Blank Question ________ can store aggregate and detail data at varying levels of resolution or

abstraction. Correct Answer

Index tree

Your Answer R-Tree

Select The Blank Question ________ is the platform for complex data transformation for the purpose of cleanse it

Correct Answer

Separate optimal Platform

Your Answer Legacy platform

Multiple Choice Multiple Answer Question SMP provides the features like :-

Correct Answer

Each node has access to common set of disks , Controllers which are accessible to all processors , Each processor has full access to the shared memory though common bus

Your Answer Controllers which are accessible to all processors , Each processor has full access to the shared memory though common bus , It is cluster of nodes

Multiple Choice Single Answer Question In intermediate data extraction data capture through transaction log uses transaction

from :- Correct Answer

Recovery from failure

Your Answer Recovery from failure

Multiple Choice Multiple Answer Question In data storage area , DBA uses metadata for processes of :-

Correct Answer

Backup , Recovery , Tuning Database

Your Answer Backup , Recovery , Management

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Multiple Choice Multiple Answer Question Foundation infrastructure of warehouse includes many elements such as :-

Correct Answer

Basic Computing platform , Hardware and operating system , DBMS and Query

Your Answer Basic Computing platform , DBMS and Query , Query processing components


Data producer Responsible for data quality Responsible for data quality

Domain values Prevalent problem Foreign key preserved

Update security Prevention of unauthorized updates

Prevalent problem

Referential integrity Foreign key preserved Prevention of unauthorized updates

Select The Blank Question ________ is density based clustering method which computes on augumented clustering

ordering for automic ordering for automatic and interactive cluster analysis Correct Answer

DBSCAN

Your Answer DBSCAN

Multiple Choice Multiple Answer Question Data compression is to compress the given data by encoding in terms of :-

Correct Answer

Association rule , Decision tree , Cluster

Your Answer Bytes , Association rule , Decision tree


Correct Answer


Your Answer Data Cleaning , Data Intergration , Data movememnt

Multiple Choice Multiple Answer Question Building blocks of Data Warehouse are :-

Correct Answer

Source Data , Data Staging , Management and Control

Your Answer Data Staging , Data Manager , Management and Control

True/False Question All data extraction, transformation, integration and staging jobs run on selected hardware

under chosen operating system.

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Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Real world databases are highly susceptible to noisy, missing and inconsistent data due

to :- Correct Answer

Huge size of data

Your Answer Huge size of data


Clustering tool To group different cases To detect unusual attribute

Data visualization tool Transaction activity using graph To filter unrelated attributes

Linkage analysis tool To identify links To group different cases

Classification tool To filter unrelated attributes To identify links

Multiple Choice Multiple Answer Question Generalized linear model includes :-

Correct Answer

Logistic regression , Poisson regression

Your Answer Poisson regression , Linear regression , Polynomial Regression

True/False Question Metadata acts like a nerve center.

Correct Answer

True

Your Answer False

Multiple Choice Single Answer Question OLAP is used for :-

Correct Answer

Online Analytical Processing

Your Answer Online Application Processing


Correct Answer

Data transformation

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Your Answer Data integration

Multiple Choice Multiple Answer Question The dimensions of spatial data cube are :-

Correct Answer

Non- spatial dimension , Spatial to non spatial , Spatial to spatial

Your Answer Non- spatial dimension , Spatial to non spatial , Spatial to spatial

Multiple Choice Single Answer Question Maintenance of cache consistency is the limitation of :-

Correct Answer

MPP

Your Answer NUMA

Select The Blank Question In ________ duplicate sub trees exist within the tree.

Correct Answer

Repetition

Your Answer Replication

Select The Blank Question Indexed ________ engines search index,web pages and build huge keyword based

indices which help to search sets of web pages containing certain keywords Correct Answer

Web Search

Your Answer Web Search

Multiple Choice Single Answer Question Redundancies can be deleted by :-

Correct Answer

Co-relational analysis

Your Answer Coherent analysis

True/False Question To detect money laundering and other financial crimes, it is important to integrate

information for multiple databases. Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question Common areas of application for mixed effect model includes :-

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Correct Answer

Multiple data , Repeated measures data , Block designs

Your Answer Multiple data , Dimensional data , Block designs

Select The Blank Question In data ________, data encoding or transformations are applied to obtain reduced or

compressed representation. Correct Answer

Compression

Your Answer Compression

Multiple Choice Single Answer Question Grouped data can be analyzed with the technique :-

Correct Answer

Mixed effect model

Your Answer Factor analysis

Select The Blank Question ________ is the navigational map of data warehouse.

Correct Answer

End user Metadata

Your Answer Extraction Metadata

Multiple Choice Multiple Answer Question Business metadata is useful for :-

Correct Answer

Providing support to end users , For external view of data , Provides technical support to search data

Your Answer Providing support to end users , For external view of data , Provides technical support to search data

True/False Question The elements of warehouse infrastructure are classified into operational and physical

infrastructure. Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Data reduction by volume can be used for data representation using which type of

reduction? Correct Answer

Numerosity reduction

Your Answer Histograms

True/False Question Descriptive mining takes perform ingerence on current data which predictive mining

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characterize the general properties of data in database Correct Answer

False

Your Answer False


Correct Answer

Decision Tree

Your Answer Decision Tree

Multiple Choice Single Answer Question Queries run faster to find exact match using which type of indexing?

Correct Answer

Clustered index

Your Answer Sequential index

Multiple Choice Single Answer Question Data can be smoothed by filling the data to function such as :-

Correct Answer

Regression


True/False Question Data classification is two step process in which first step includes classfication of model

and in second step model describes set of data. Correct Answer

False

Your Answer True

Select The Blank Question In data warehouse architecture, the ________ component interleaves with and connects

other components. Correct Answer

Metadata

Your Answer Metadata

True/False Question Legacy data resides on Hierarchical or Network database.

Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer

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Question Metadata in a data warehouse falls into following categories :-

Correct Answer




Multiple Choice Multiple Answer Question Metadata is essential for IT for :-

Correct Answer

Source data structures , Data summarization

Your Answer Web enabling , Source data structures , Data summarization

Multiple Choice Multiple Answer Question Financial data called for banking and financial industry are often relatively :-

Correct Answer

Complete , Reliable , High Quality

Your Answer Complete , Reliable , Correct

Select The Blank Question ________ option of warehouse architecture provides incremental growth.

Correct Answer

Cluster

Your Answer Cluster


Operating systems compatibility Security, reliability, availability Security, reliability, availability

Data Acquisition Data Extraction, Transformation, clensing, integration

Data Extraction, Transformation, clensing, integration

Data Storage Data loading , Archiving Data loading , Archiving

Information Delivery Report generation, query processing and complex analysis

Report generation, query processing and complex analysis

True/False Question A cluster is a collection of similar data objects in same cluster and disimilar to objects in

another cluster. Correct Answer

True

Your Answer True

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Multiple Choice Single Answer Question Which of the following method creates copies of data in distributed environment?

Correct Answer

Replication



Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Capture at data source and that's why this method is quite reliable :-

Correct Answer

Capture by database Triggers

Your Answer Capture in source application


Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question For Banking and financial data which type of analysis is used?

Correct Answer

Multidimensional

Your Answer Relational

Multiple Choice Single Answer Question Which of the following methods for regression is used on sparse data :-

Correct Answer

Regression and log-linear model

Your Answer Regression and transformation

Multiple Choice Multiple Answer Question Following data transformation methods are used in analysis of time series data :-

Correct Answer

Scaling , Normalization , Windows Stiching

Your Answer Scaling , Normalization , Windows Stiching

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Select The Blank Question ________ function of data staging component involves many forms of combining pieces

of data from different sources. Correct Answer

Data Transformation

Your Answer Data Loading

Multiple Choice Single Answer Question Real world databases are highly susceptible to noisy, missing and inconsistent data due

to :- Correct Answer

Huge size of data

Your Answer Relational data


Correct Answer

Array

Your Answer Structure

Multiple Choice Multiple Answer Question The tools of metadata falls in following categories :-

Correct Answer

Development tools for IT professional , Information access tool for End user

Your Answer Access tool , Development tools for IT professional , Information access tool for End user

True/False Question Architecture comes first, tools follows it.

Correct Answer

True

Your Answer True

Select The Blank Question ________ is an alternative aggolomerative hierarchical clustering algorithm.

Correct Answer

ROCK

Your Answer ROKE

Multiple Choice Single Answer Question Which of the following function involves data cleaning, data standardizing and

summarizing? Correct Answer

Transforming data

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Your Answer Transforming data

True/False Question In decision tree internal nodes are denoted by ovals and leaf nodes are denoted by

rectangles Correct Answer

False

Your Answer True


Correct Answer

Backup , Recovery , Tuning Database

Your Answer Backup , Recovery , Tuning Database


Correct Answer


Your Answer P(X|H)=P(X|H)(PH)/P(X)

True/False Question Data cleansing means removing noisy and inconsistent data.

Correct Answer

True

Your Answer True


Correct Answer

End users

Your Answer End users

Select The Blank Question A web server usually registers ________ entry for every access of a web page

Correct Answer

Weblog

Your Answer Web site

Multiple Choice Multiple Answer Question Data processing techniques are :-

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Correct Answer

Cleansing , Integration , Transformation

Your Answer Cleansing , Transformation , Collection


Correct Answer

Regression


Multiple Choice Single Answer Question Deviation based outlier detection identifes outliers by :-

Correct Answer

Examining character of objects in groups

Your Answer Examining objects in group

Multiple Choice Single Answer Question Data partitioning, data clustering are the techniques for :-

Correct Answer

Performance enhancement

Your Answer Performance enhancement

Multiple Choice Multiple Answer Question Following are the issues to consider during data integration :-

Correct Answer

Schema integration , Redundancy , Detection and resolution of data values

Your Answer Schema integration , Redundancy , Inconsistency

True/False Question Management architectural component manages and controls data acquisition functions.

Correct Answer

True

Your Answer True


Data loading tool Primary key generation Primary key generation

Data modeling tool Reverse Engineering capabilities Reverse Engineering capabilities

Data Extraction tool Bulk extraction for full refresh Bulk extraction for full refresh

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Data transformation tool Default values Replication

Multiple Choice Multiple Answer Question DNA sequences are comprised of :-

Correct Answer

Adenine , Gaunine , Thymine

Your Answer Adenine , Cytocine , Gaunine

Multiple Choice Single Answer Question Large number of indexes affects the loading process because :-

Correct Answer

Indexes are created for new records

Your Answer Indexes are created for old records

Select The Blank Question The technique of ________ enables concurrent input/output operations and improves

file's access performance substantially. Correct Answer

File striping

Your Answer Data migration

Multiple Choice Multiple Answer Question Warehouse Operational infrastructure is to support each architecture component consists

of :- Correct Answer

People , Procedures , Management software

Your Answer People , Procedures , Management software

True/False Question In Purning method, postpruning requires more computation than prepruning yet generally

leads to more reliable. Correct Answer

True

Your Answer False

Select The Blank Question ________ technique can be used to reduce the number of values for a given continuous

attribute by dividing range of attributes into interval. Correct Answer

Descretization

Your Answer Compression

True/False Question Data cubes created for varying levels of abstraction are referred as cuboids.

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Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Which of the following approach requires more computation?

Correct Answer

Filter approach

Your Answer Filter approach

Select The Blank Question ________components consists all the different ways of making the information from the

data warehouse available to the user. Correct Answer

Information Delivery

Your Answer Metadata

Multiple Choice Multiple Answer Question Data transformation includes :-

Correct Answer

Smoothing , Aggregation , Generalization

Your Answer Smoothing , Aggregation



Relational


True/False Question In Linear regression data are modeled to fit a straight line.

Correct Answer

True

Your Answer True



Regression

Your Answer Analysis of variance


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Question Methods for outlier detection are categorised into following approaches :-

Correct Answer

Statistical , Distance based , Deviation based

Your Answer Statistical , Distance based , Deviation based

Multiple Choice Multiple Answer Question Data base miner provides multiple data mining algorithms including :-

Correct Answer

Discovery driven OLAP analysis , Association , Classification

Your Answer Discovery driven OLAP analysis , Association , Regression



Correct Answer Examining character of objects in groups

Your Answer Examining character of objects in groups

Select The Blank Question ________ component of warehouse is responsible for coordinating services and

activities within the data warehouse. Correct Answer Management and Control

Your Answer Management and Control

True/False Question Sequential pattern analysis and similarity search techniques have been developed in

data mining. Correct Answer True

Your Answer True

True/False Question A distinct feature of DB Miner is its data cube based online analytical mining.

Correct Answer True

Your Answer True


privileges as well as not for table and views.

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Correct Answer Network administrator

Your Answer Network administrator

Select The Blank Question For operational system, the stored data contains ________values.

Correct Answer Current data

Your Answer Current data

True/False Question Intelligent miner is an IBM data mining product.

Correct Answer True

Your Answer True

Select The Blank Question The technique of ________ enables concurrent input/output operations and improves

file's access performance substantially. Correct Answer File striping

Your Answer File striping

Multiple Choice Multiple Answer Question SMP provides the features like :-

Correct Answer Controllers which are accessible to all processors , Each processor has full access to the shared memory though common bus , Each node has access to common set of disks

Your Answer Controllers which are accessible to all processors , Each processor has full access to the shared memory though common bus


Incremental data capture Differed data capture Differed data capture

Initial load of data warehouse "as-is" data capture "as-is" data capture

Static data Capture of data in given point of time

Capture of data in given point of time

Data revision Incremental data capture Incremental data capture

True/False Question In Purning method, postpruning requires more computation than prepruning yet

generally leads to more reliable. Correct Answer True

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Your Answer False

True/False Question Data preprocessing is an important step in knowledge discovery process.

Correct Answer True

Your Answer True


Correct Answer Non- spatial dimension , Spatial to non spatial , Spatial to spatial


True/False Question Data mining often requires data integration.

Correct Answer True

Your Answer True


Correct Answer Backup , Recovery , Tuning Database

Your Answer Backup , Recovery , Tuning Database


called Correct Answer Value independence

Your Answer Attirbute conditional independence

Select The Blank Question ________components consists all the different ways of making the information from the

data warehouse available to the user. Correct Answer Information Delivery

Your Answer Information Delivery


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Correct Answer Cleansing , Integration , Transformation

Your Answer Integration , Transformation , Cleansing


Correct Answer Object by variable structure

Your Answer Two mode matrix


Information Delivery Report generation, query processing and complex analysis

Report generation, query processing and complex analysis

Operating systems compatibility Security, reliability, availability Security, reliability, availability

Data Acquisition Data Extraction, Transformation, clensing, integration

Data Extraction, Transformation, clensing, integration

Data Storage Data loading , Archiving Data loading , Archiving

Select The Blank Question In ________ type smoothing, minimum and maximum values in given bin are identified

as bin boundaries. Correct Answer Smoothing by bin boundaries

Your Answer Smoothing by bin boundaries


Correct Answer Performance enhancement

Your Answer Data extraction


Correct Answer Time series

Your Answer Survival analysis


Correct Answer Clustering and Employing rules for classification

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Select The Blank Question Most of the warehouses employ ________ database Management System.

Correct Answer Relational


True/False Question NUMA provides better scalability than SMP.

Correct Answer True

Your Answer True


Correct Answer Decision Tree


Multiple Choice Single Answer Question Data migration affects performance requiring multiple blocks to be read which can be

adjusted by :- Correct Answer Block percent free

Your Answer Block percent free


Correct Answer Production Data , Internal External Data

Your Answer Production Data , Analyzed data , Non Analyzed data

Multiple Choice Single Answer Question Redundancies can be deleted by :-

Correct Answer Co-relational analysis

Your Answer Co-relational analysis


Correct Answer True

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Your Answer True

Multiple Choice Multiple Answer Question The functions of data acquisition are :-

Correct Answer Data Transformation , Data Extraction

Your Answer Data Extraction , Data Transformation , Data cleansing

Multiple Choice Single Answer Question SMP stands for :-

Correct Answer Symmetric Multiprocessing

Your Answer Symmetric Multiprocessing

Multiple Choice Multiple Answer Question Mining values can be removed by :-

Correct Answer Filling values manually , Use of global constant , Use of attribute mean

Your Answer Filling values manually , Use of attribute mean

Multiple Choice Single Answer Question Which from the following is used for classification and prediction?

Correct Answer Regression trees


Multiple Choice Multiple Answer Question Before moving data to data warehouse is has to go through :-

Correct Answer Transformation , Integration , Consolidation

Your Answer Transformation , Integration , Consolidation

Select The Blank Question ________ is the navigational map of data warehouse.

Correct Answer End user Metadata

Your Answer Operational Metadata


Correct Answer True

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Your Answer True

Multiple Choice Single Answer Question Which technique analyze experimental data?

Correct Answer Analysis of variance


Multiple Choice Multiple Answer Question The need for metadata is for :-

Correct Answer Using data warehouse , Building data warehouse , Administration of warehouse

Your Answer Building data warehouse , Administration of warehouse

Multiple Choice Single Answer Question Development and deployment of your data warehouse is joint effort between :-

Correct Answer IT staff and user representatives

Your Answer IT staff and user representatives


of data from different sources. Correct Answer Data Transformation

Your Answer Data Transformation


Correct Answer P(H|X)=P(X|H)(P)/P(X)

Your Answer P(X|H)=P(X|H)(PH)/P(X)

Multiple Choice Multiple Answer Question When you use tool for design and development, following things take place with

metadata :- Correct Answer Metadata is no longer passive document , Metadata takes part in process , Metadata

aids in automation of data warehouse process Your Answer Metadata is no longer passive document , Metadata takes part in process , Metadata

aids in automation of data warehouse process

Multiple Choice Multiple Answer Question The main categories of Metadata in warehouse are :-

Correct Answer Operational , Extraction and transformation Metadata , End user Metadata

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Your Answer Operational , Extraction and transformation Metadata , End user Metadata

Select The Blank Question ________ is the type of pilot for early delivery with broader scope and may be

integrated. Correct Answer Broad business pilot

Your Answer Proof of concept pilot

True/False Question A process of grouping a set of physical or abstract objects into classes of similar objects

is called clusiering Correct Answer True

Your Answer True


Multiple Choice Single Answer Question Which type of Grid clustering depends on the granularity of lowest level of grid structure?

Correct Answer

STING

Your Answer OPTICS

Multiple Choice Single Answer Question Which of the following option of data extraction is known as application assisted data

capture? Correct Answer

Capture in source application

Your Answer Capture by comparing files

True/False Question Moving data into staging area and performing data transformation function is a part of

data acquisition. Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question The objective for physical design of data warehouse are :-

Correct Answer

Improve performance , Ensure scalability , Manage store

Your Answer Improve performance , Ensure scalability , Manage database

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Multiple Choice Multiple Answer Question User must have proper access to metadata for performing responsibilities of :-

Correct Answer

Design , Administration

Your Answer Design , Administration , Management

Multiple Choice Multiple Answer Question In Intelligent miner the data mining product provides data mining algorithm including

Correct Answer

Association , Classification , Regression

Your Answer Association , Regression , Aggregation

Multiple Choice Single Answer Question The big difference between data warehouse and any operational system is its :-

Correct Answer

Usage

Your Answer Organization

True/False Question Loan payment prediction and customer credit analysis are critical to business of bank.

Correct Answer

True

Your Answer False

Multiple Choice Single Answer Question Which of the option is not considered as the major function needed to get data ready?

Correct Answer

Storing data

Your Answer Extracting data

True/False Question In the data acquisition area, the data flow begins at the data sources and pauses at

staging area. Correct Answer

True

Your Answer True


Correct Answer

Relational


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Multiple Choice Single Answer Question Which of the following is based on set of density distribution function clustering?

Correct Answer

DBSCAN

Your Answer DBSCAN


Correct Answer

True

Your Answer True


Correct Answer

100000

Your Answer 100000


Correct Answer

True

Your Answer True


Interactive visual data mining Visualization tool Audio signal

Data visualization Visual display Graphical display

Data mining result visualization Presentation of knowledge Visualization tool

Data mining process visualization Data mining in visual format Data mining in visual format

Multiple Choice Single Answer Question Deliberate splitting of a table and its index data into manageable part is known as :-

Correct Answer

Partitioning

Your Answer Decomposing


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Question Data mining is applicable to :-

Correct Answer

Relational Database , Data Warehouse , Transaction Database

Your Answer Relational Database , Data Warehouse , Transaction Database

True/False Question Data mining is not that much powerful tool for vast data such as gene sequences in DNA


True

Your Answer False


Correct Answer

True

Your Answer True


Correct Answer

Regression trees

Your Answer Generalized linear model

Multiple Choice Multiple Answer Question Data cleansing routines work to clean the data by :-

Correct Answer

Filling missing values , Smoothing noisy data

Your Answer Filling missing values , Smoothing noisy data , Resolving inconsistency



Regression


Select The Blank Question ________ is the type of pilot for early delivery with broader scope and may be integrated.

Correct Answer

Broad business pilot

Your Answer Proof of concept pilot

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Multiple Choice Multiple Answer Question In physical design of data warehouse administration provides features like :-

Correct Answer

Avoiding reorganizing of tables , Support backup and recovery , Query processing

Your Answer Support backup and recovery , Manage store area , Query processing

Select The Blank Question ________ dimension of database in which primitive level data are spatial but

generalization becomes non spatial. Correct Answer

Spatial to non spatial

Your Answer Spatial

Multiple Choice Single Answer Question The data warehouse DBMS executes on :-

Correct Answer

Data server component

Your Answer Data server component

True/False Question A process of grouping a set of physical or abstract objects into classes of similar objects is

called clusiering Correct Answer

True

Your Answer False

Select The Blank Question ________ component of warehouse is responsible for coordinating services and activities

within the data warehouse. Correct Answer

Management and Control

Your Answer Management and Control

Multiple Choice Single Answer Question Large number of indexes affects the loading process because :-

Correct Answer

Indexes are created for new records

Your Answer Records are reshuffled


Chasm Challenges Method to solve problem

Early majority Nature technology Technology to die out

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Innovators Method to solve problem Challenges

Early adaptors Increased interest Increased interest


Correct Answer

ROCK

Your Answer ROKE

Multiple Choice Single Answer Question Which technique is used to predict categorical response variable?

Correct Answer

Discriminant analysis



Correct Answer



Multiple Choice Multiple Answer Question The information delivery methods from data warehouse are :-

Correct Answer

Complex queries , MD Analysis , Statistical Analysis

Your Answer Complex queries , MD Analysis , ETS System

True/False Question To remove noise from data is called as Smoothing.

Correct Answer

True

Your Answer True

Select The Blank Question ________ does not handle categorical attributes.

Correct Answer

CURE

Your Answer Chameleon


Page 34 of 141


Question Data warehouse environment is functionally divided into following areas :-

Correct Answer

Data acquisition , Data storage , Information delivery

Your Answer Data storage , Information delivery , Data transformation

True/False Question Data mining often requires data integration.

Correct Answer

True

Your Answer True

Select The Blank Question ________ method of regression is useful when errors fails to satisfy normal conditions.

Correct Answer

Robust

Your Answer Polynomial



TCP/IP

Your Answer TCP/IP

Multiple Choice Multiple Answer Question The areas of classification for metadata are :-

Correct Answer

Development/usage , Technical/business , BackRoom/Front Room

Your Answer Development/usage , Technical/business , Administration

Multiple Choice Multiple Answer Question Data base miner provides multiple data mining algorithms including :-

Correct Answer


Your Answer Association , Classification , Regression

Select The Blank Question The ________ record is one-to-many relationship with corresponding fact table record.

Correct Answer

Dimension tables

Your Answer Fact table

Page 35 of 141


Multiple Choice Single Answer Question For Incremental data loads the sequence is :-

Correct Answer

Triggering ->Filtering ->data extraction -> Transformation ->Integration ->cleansing

Your Answer Triggering ->Filtering ->data extraction -> Transformation ->Integration ->cleansing

Multiple Choice Multiple Answer Question The platform of Data warehouse consists of :-

Correct Answer

Basic hardware components , Operating System , Network and Network software

Your Answer Basic hardware components , Network and Network software , Utility software

Multiple Choice Multiple Answer Question The smoothing techniques are :-

Correct Answer

Binning , Clustering , Regression

Your Answer Clustering , Regression , Insertion



Correct Answer

Robust

Your Answer Robust

True/False Question Data classification is two step process in which first step includes classfication of model

and in second step model describes set of data. Correct Answer

False

Your Answer True


Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question Following factors play important role in financial analysis :-

Page 36 of 141


Correct Answer

Data warehouse , Data cubes , Outliner analysis

Your Answer Data warehouse , Data cubes , Data accuracy


Correct Answer


Your Answer Object by object structure


Correct Answer




Correct Answer

Data acquisition

Your Answer Data acquisition

Multiple Choice Single Answer Question OLAP is used for :-

Correct Answer

Online Analytical Processing

Your Answer Online Analytical Processing

True/False Question Metadata acts like a nerve center.

Correct Answer

True

Your Answer True


Constructive merge New record supercedes Populating data warehouse table first time

Initial Load Populating data warehouse table first time

Populating data warehouse table first time

Incremental Load Applying ongoing changes Applying ongoing changes

Page 37 of 141


Load Image To correspond to target files Applying data

Multiple Choice Single Answer Question Disparity is the significant & disturbing characteristic of which type of data?

Correct Answer

Production data

Your Answer Production data



Value independence

Your Answer Class Conditional independence

True/False Question Audio data mining can be an interesting alternative to visual mining.

Correct Answer

True

Your Answer True

Select The Blank Question ________ platform is the platform on which the data warehouse DBMS runs and

database exist. Correct Answer

Data storage

Your Answer Data storage

True/False Question Smoothing by bin means each value in bin is replaced by the mean value of the bucket.

Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Following clustering method is classified as being agglomerative or divisive :-

Correct Answer

Grid based

Your Answer Hierarchical Method

Multiple Choice Multiple Answer Question Data processing is done for :-

Correct Improving the efficiency , Ease of mining

Page 38 of 141


Answer Your Answer Improving the efficiency , Ease of mining , Removing redundancy

Multiple Choice Single Answer Question For Banking and financial data which type of analysis is used?

Correct Answer

Multidimensional


Select The Blank Question Semantic integration of ________ genome database is the important task of DNA


Heterogeneous and distributed

Your Answer Homogenous and distributed

Multiple Choice Multiple Answer Question Preprocessing steps of data in order to help improve accuracy, efficiency and scalability of

classification & prediction are :- Correct Answer

Data Cleaning , Relevance Analysis , Data Transformation

Your Answer Data Cleaning , Relevance Analysis , Data Transformation

Multiple Choice Multiple Answer Question The functions of data acquisition are :-

Correct Answer

Data Extraction , Data Transformation

Your Answer Data Extraction , Data Transformation , Data cleansing


Correct Answer

Performance enhancement

Your Answer Performance enhancement


Correct Answer

Grid based

Your Answer Partioning based

Multiple Choice Multiple Answer Question The Main areas of Data Warehouse are :-

Page 39 of 141


Correct Answer

Data acquisition , Data Storage , Information Delivery

Your Answer Data acquisition , Data Storage , Information Delivery

True/False Question From a Dataware house perspective data mining canbe viewed as an advanced stage of

Online Analytical Programming. Correct Answer

True

Your Answer True


Correct Answer

ROCK

Your Answer ROCK


Correct Answer


Your Answer Separate optimal Platform

Multiple Choice Multiple Answer Question Metadata recorded in information delivery functional area is related to :-

Correct Answer

Predefined queries , Input parameter definition , Reports

Your Answer Predefined queries , Reports

True/False Question Data cubes created for varying levels of abstraction are referred as cuboids.

Correct Answer

True

Your Answer True


Correct Answer



Select The Blank

Page 40 of 141


Question ________ includes Normalization and Aggregation as data preprocessing procedures.

Correct Answer

Data transformation




True

Your Answer True

Multiple Choice Multiple Answer Question Methods for outlier detection are categorised into following approaches :-

Correct Answer



Multiple Choice Single Answer Question The first step of attibute oriented induction is :-

Correct Answer

Data focusing

Your Answer Data Collection

True/False Question Legacy data resides on Hierarchical or Network database.

Correct Answer

True

Your Answer True


Correct Answer

Cluster

Your Answer Cluster


Correct Answer

Regression


Page 41 of 141


Multiple Choice Single Answer Question Many methods for data smoothing are also methods for data reduction involving :-

Correct Answer

Discretization


Multiple Choice Multiple Answer Question Data mining is applicable to :-

Correct Answer




Correct Answer


Your Answer Data about data , Catalog of data , Data warehouse roadmap

Multiple Choice Single Answer Question The data warehouse DBMS executes on :-

Correct Answer

Data server component

Your Answer Data server component


Correct Answer

Production Data , Internal External Data

Your Answer Production Data , Internal External Data , Analyzed data



Relational



Metadata Roadmap for user Details of summary

Page 42 of 141






Correct Answer

True

Your Answer True


Correct Answer

Relational



Correct Answer

Decision Tree



Multiple Choice Single Answer Question The technique of data clustering facilitates :-

Correct Answer

Serial access

Your Answer Indexed access

Select The Blank Question In ________ type smoothing, minimum and maximum values in given bin are identified as

bin boundaries. Correct Answer

Smoothing by bin boundaries

Your Answer Smoothing by bin boundaries

Multiple Choice Multiple Answer Question The ways of Intra query parallelization are :-

Correct Answer

Horizontal parallelization , Vertical Parallelization , Hybrid parallelization

Page 43 of 141


Your Answer Vertical Parallelization , Homogenous parallelization


Correct Answer

Time series


True/False Question One of the most important search problem in genetic analysis is similarity search and

comparison among DNA sequence. Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question User must have proper access to metadata for performing responsibilities of :-

Correct Answer

Design , Administration

Your Answer Administration , Management , Accessing


Correct Answer




Correct Answer


Your Answer Legacy platform

Multiple Choice Multiple Answer Question Classification and Prediction have following applications :-

Correct Answer

Credit approval , Medical Diagnosis , Performance Prediction

Your Answer Credit approval , Selective Marketing


Correct Tuning Database , Backup , Recovery

Page 44 of 141


Answer Your Answer Tuning Database , Management


Correct Answer

Regression

Your Answer Binning

True/False Question Tools perform major functions in data warehouse environment.

Correct Answer

True

Your Answer True


Correct Answer

Cluster

Your Answer Cluster

True/False Question Data staging and data storage may start out on same computing platform.

Correct Answer

True

Your Answer False


Middleware & connectivity tool Transparent access to source system

Assist data ware house administration

Data Quality tool Locating data errors Locating data errors

OLAP tools Channel queries Channel queries

Alert system tool Users attention on exceptions Users attention on exceptions

Multiple Choice Single Answer Question Attribute construction is the part of :-

Correct Answer

Transformation

Page 45 of 141


Your Answer Smoothing

Multiple Choice Single Answer Question Which from the following are special programs that are stored on database and fired when

certain predefined action occurs? Correct Answer

Triggers

Your Answer Triggers


Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Deliberate splitting of a table and its index data into manageable part is known as :-

Correct Answer

Partitioning

Your Answer Partitioning



Value independence

Your Answer Attirbute conditional independence

Multiple Choice Single Answer Question Simple matching approach is used for computing disimilarity between two objects for :-

Correct Answer

Nominal variable

Your Answer Invariant variable

True/False Question Data mining is not that much powerful tool for vast data such as gene sequences in DNA


True

Your Answer False


Page 46 of 141


Correct Answer

Grid based

Your Answer Density based




Your Answer Network administrator

Select The Blank Question ________ clustering method follows statistical and neural network approach.

Correct Answer

Model based

Your Answer Grid based


Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question The different analysis tools which are useful to detect unusual patterns such as large

amount of cash flow at certain period by certain group of people are :- Correct Answer

Linkage analysis tool , Outlier analysis tool , Sequential pattern analysis tool

Your Answer Linkage analysis tool , Outlier analysis tool , Complexity definition tool


Correct Answer

Adenine , Gaunine , Thymine

Your Answer Adenine , Cytocine , Gaunine , Thymine

True/False Question Management architectural component manages and controls data acquisition functions.

Correct Answer

True

Your Answer False

Multiple Choice Single Answer

Page 47 of 141


Question If many indexes are needed, then on which table which option is more preferable?

Correct Answer

Splitting of tables

Your Answer Splitting of tables



True

Your Answer True

Select The Blank Question It is good practice to drop ________ before initial load.

Correct Answer

Index

Your Answer Index


Correct Answer

Decision Tree


True/False Question All data extraction, transformation, integration and staging jobs run on selected hardware

under chosen operating system. Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question Metadata in a data warehouse falls into following categories :-

Correct Answer




Correct Answer



Page 48 of 141



Correct Answer

Robust

Your Answer Polynomial

Multiple Choice Multiple Answer Question The functional areas of metadata are :-

Correct Answer

Data Acquisition , Data storage , Information delivery

Your Answer Data Acquisition , Data storage , Information delivery


Load Utility High performance data loading, recovery

High performance data loading, recovery

Query Governer Abort runaway query Balancing extraction of query

Query Optimizer Parsing, optimizing query Parsing, optimizing query

Query Management Balancing extraction of query Execution and rescheduling queries

Multiple Choice Single Answer Question The first step of attibute oriented induction is :-

Correct Answer

Data focusing

Your Answer Data Classification

Multiple Choice Single Answer Question Dimensionality reduction reduces the data set size by removing :-

Correct Answer

Irrelevant attributes

Your Answer Irrelevant attributes


Correct Answer

True

Your Answer True


Page 49 of 141


Question Data cleansing routines work to clean the data by :-

Correct Answer

Filling missing values , Smoothing noisy data

Your Answer Smoothing noisy data , Resolving inconsistency



Regression



Correct Answer

Relational

Your Answer Multidimensional

Multiple Choice Single Answer Question Which of the following method creates copies of data in distributed environment?

Correct Answer

Replication



Correct Answer

100000

Your Answer 100000



Correct Answer

Gaunine , Thymine , Adenine

Your Answer Gaunine , Thymine , Adenine , Cytocine


Correct Production Data , Internal External Data

Page 50 of 141


Answer Your Answer Production Data , Internal External Data

True/False Question Loan payment prediction and customer credit analysis are critical to business of bank.

Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question Preprocessing steps of data in order to help improve accuracy, efficiency and scalability of

classification & prediction are :- Correct Answer




Correct Answer

Usage

Your Answer Usage


Correct Answer

True

Your Answer True



True

Your Answer True


Correct Answer

Cluster

Your Answer Cluster

Select The Blank

Page 51 of 141


Question For operational system, the stored data contains ________values.

Correct Answer

Current data

Your Answer Current data

Multiple Choice Multiple Answer Question Splitting of data into smaller partition decision tree induction is prone to :-

Correct Answer

Fragmentation , Replication , Repetation

Your Answer Fragmentation , Generalization


Correct Answer

Data transformation


Multiple Choice Single Answer Question Bitmapped indexes are more suitable for data warehouse environment than for an OLTP

system Correct Answer

Bitmapped index

Your Answer Clustered index

True/False Question Data updates are common place in an operational database.

Correct Answer

True

Your Answer True


Correct Answer


Your Answer User tool appreciation



Metadata Roadmap for user Roadmap for user

Page 52 of 141




Multiple Choice Single Answer Question A gene is usually comprised of hundreds of individual :-

Correct Answer

Nucleotides

Your Answer Nucleotides


Correct Answer

True

Your Answer True


Correct Answer

True

Your Answer True


Correct Answer


Your Answer Examining distance between objects

Select The Blank Question ________ is density based clustering method which computes on augumented clustering

ordering for automic ordering for automatic and interactive cluster analysis Correct Answer

DBSCAN

Your Answer DBSCAN

Multiple Choice Single Answer Question Enterprise miner technique provides data mining algorithms including distinguishing

feature as :- Correct Answer

Advanced Statistical and advanced visualization tool

Your Answer Advanced Statistical and classification tool

Match The Following

Page 53 of 141


Question Correct Answer Your Answer

Load Image To correspond to target files To correspond to target files

Constructive merge New record supercedes New record supercedes

Initial Load Populating data warehouse table first time

Populating data warehouse table first time

Incremental Load Applying ongoing changes Applying ongoing changes


Correct Answer


Your Answer Unsupervised clustering , Clustering is fast



TCP/IP

Your Answer HTTP

True/False Question A process of grouping a set of physical or abstract objects into classes of similar objects is

called clusiering Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Development and deployment of your data warehouse is joint effort between :-

Correct Answer

IT staff and user representatives

Your Answer IT staff and user representatives

Multiple Choice Single Answer Question Attribute construction is the part of :-

Correct Answer

Transformation

Your Answer Aggregation

Multiple Choice Single Answer Question Which of the following data warehouse component includes dependent data marts,

special multidimensional database and full range of query and reporting facilities?

Page 54 of 141


Correct Answer

Information Delivery component

Your Answer Data Staging component

Multiple Choice Single Answer Question Which technique analyze experimental data?

Correct Answer

Analysis of variance

Your Answer Analysis of variance


of data from different sources. Correct Answer

Data Transformation

Your Answer Data Transformation

Multiple Choice Multiple Answer Question Metadata is essential for IT for :-

Correct Answer

Source data structures , Data summarization

Your Answer Source data structures , Data summarization , Aggregation

Multiple Choice Multiple Answer Question Methods for outlier detection are categorised into following approaches :-

Correct Answer




Correct Answer

End users

Your Answer Query tool specialist




Your Answer End user


Page 55 of 141


Question Data base miner provides multiple data mining algorithms including :-

Correct Answer


Your Answer Discovery driven OLAP analysis , Association , Classification


Correct Answer


Your Answer Data Cleaning , Data Intergration , Data Selectin

True/False Question In Linear regression data are modeled to fit a straight line.

Correct Answer

True

Your Answer True

True/False Question Data in data warehouse cuts across application.

Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question If many indexes are needed, then on which table which option is more preferable?

Correct Answer

Splitting of tables

Your Answer Rearranging of tables

Multiple Choice Single Answer Question Which technique is used to predict categorical response variable?

Correct Answer

Discriminant analysis

Your Answer Discriminant analysis

Multiple Choice Multiple Answer Question Following data transformation methods are used in analysis of time series data :-

Correct Answer

Scaling , Normalization , Windows Stiching

Your Answer Scaling , Normalization , Windows Stiching

Page 56 of 141


Multiple Choice Single Answer Question Concept Description generates description for :-

Correct Answer

Charaterisation and Comparison

Your Answer Charaterisation and Comparison

True/False Question Data preprocessing is an important step in knowledge discovery process.

Correct Answer

True

Your Answer True



Relational


Multiple Choice Multiple Answer Question Data Mining means :-

Correct Answer

Knowledge mining from database , Data /Pattern analysis , Data Archelogy

Your Answer Knowledge mining from database , Data /Pattern analysis , Data Archelogy

Multiple Choice Single Answer Question What improves accuracy and speed of subsequent mining process?

Correct Answer

Integration

Your Answer Integration

Multiple Choice Multiple Answer Question Data mining is applicable to :-

Correct Answer




True/False

Page 57 of 141


Question Data cube stores multidimensional aggregate information.

Correct Answer

True

Your Answer True

Select The Blank Question ________ is a summarization of general characteristics or features of a target class of data.

Correct Answer

Data Characterization

Your Answer Data Generalization

Multiple Choice Single Answer Question The pilot which is useful for user and project team both as it touches all important functions

is :- Correct Answer

Expanded seed pilot

Your Answer User tool appreciation pilot

Multiple Choice Single Answer Question Which of the following technique involves placing and managing related units of data in

same physical block of storage Correct Answer

Clustering


Multiple Choice Multiple Answer Question History of metadata includes :-

Correct Answer

Changes to source system , Data extraction methods , Data transformation algorithm

Your Answer Changes to source system , Data extraction methods

Multiple Choice Single Answer Question Which of the following approach requires more computation?

Correct Answer

Filter approach

Your Answer Filter approach

True/False Question The substantial part of historical data comes form antiquated legacy system.

Correct Answer

True

Your Answer True

Page 58 of 141


Multiple Choice Multiple Answer Question Data reduction includes :-

Correct Answer

Single value decomposition , Wavelets , Regression

Your Answer Single value decomposition , Wavelets , Regression


Correct Answer


Your Answer P(H|X)=P(X|H)(P)/P(X)

Multiple Choice Single Answer Question Establish the importance of data quality, Form data quality steering committee, Institute a

data quality framework, Assign roles and responsibilities. These are the steps of :- Correct Answer

Data purification

Your Answer Data quality control

Select The Blank Question With the widespread option of ________ real-time connection is viable for data warehouse.

Correct Answer

TCP/IP

Your Answer TCP/IP

Multiple Choice Single Answer Question Which is the typical example of Grid based clustering method

Correct Answer

STING

Your Answer STING


Normalization Scattered data Constructing small units of data

Smoothing Removal of noisy data Removal of noisy data

Aggregation Summary operations Constructing new attributes

Generalization Data hierarchies Data hierarchies


Page 59 of 141


Question Association rules mining is based on :-

Correct Answer



True/False Question Bitmapped indexing does not apply to fault tables.

Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question For processing metadata in informal delivery area, data can be referred back for :-

Correct Answer

Source data configuration , Data structure , Data transformation

Your Answer Source data configuration , Data structure , Data transformation

True/False Question The precision measure is the % of retrieved documents that are in fact relevant to query.

Correct Answer

True

Your Answer False


Correct Answer

Grid based


Select The Blank Question Analysis of frequent sequential patterns is important in analysis ________ in generic

sequence. Correct Answer

Dismilarity and similarity

Your Answer Similarity

Select The Blank Question ________ is the clustering method which encounters difficultes regarding the selection of

merge/split points Correct Answer

Hierachical

Your Answer Hierachical

Page 60 of 141



Correct Answer

Grid based


Multiple Choice Multiple Answer Question Normalization improves :-

Correct Answer

Efficiency , Accuracy

Your Answer Efficiency , Accuracy

Multiple Choice Single Answer Question A Wavelet transformation is :-

Correct Answer

Single processing Technique that decomposes signals into different frequency subbands

Your Answer Single processing Technique that decomposes signals into different frequency subbands

Multiple Choice Single Answer Question The Clustering method DBSCAN stands for :-

Correct Answer

Desity Based Spatial clustering of Application with Noise

Your Answer Desity Based Spatial clustering of Application with Noise

Select The Blank Question ________ can store aggregate and detail data at varying levels of resolution or abstraction.

Correct Answer

Index tree

Your Answer Index tree

Multiple Choice Single Answer Question Behavioral data of objects can be derived by the application of :-

Correct Answer

Method

Your Answer Method


Correct Answer


Page 61 of 141


Your Answer Broad business pilot

Multiple Choice Multiple Answer Question Metadata types can be classified as :-

Correct Answer

Business metadata , Technical metadata

Your Answer Business metadata , Technical metadata

Multiple Choice Single Answer Question Simple matching approach is used for computing disimilarity between two objects for :-

Correct Answer

Nominal variable

Your Answer Nominal variable



Value independence

Your Answer Value independence

Multiple Choice Multiple Answer Question The different analysis tools which are useful to detect unusual patterns such as large

amount of cash flow at certain period by certain group of people are :- Correct Answer

Linkage analysis tool , Outlier analysis tool , Sequential pattern analysis tool

Your Answer Linkage analysis tool , Outlier analysis tool , Sequential pattern analysis tool

Multiple Choice Single Answer Question When DDL statements are created using database software, so to create an index system

creates :- Correct Answer

B-Tree index

Your Answer B-Tree index


Correct Answer

Cleansing , Integration , Transformation

Your Answer Cleansing , Integration , Transformation


Page 62 of 141


Load Utility High performance data loading, recovery

High performance data loading, recovery

Query Governer Abort runaway query Abort runaway query

Query Optimizer Parsing, optimizing query Parsing, optimizing query

Query Management Balancing extraction of query Balancing extraction of query

Select The Blank Question Indexed ________ engines search index, web pages and build huge keyword based indices

which help to search sets of web pages containing certain keywords Correct Answer

Web Search Engines

Your Answer Web Search Engines



True

Your Answer True

Select The Blank Question ________ is the time consuming and less feasible approach for filling missing values.

Correct Answer

Filling missing values manually

Your Answer Filling missing values manually


Correct Answer

Regression trees

Your Answer Regression trees

Multiple Choice Multiple Answer Question Multimedia database stores and manages large collection of database such as :-

Correct Answer

Audio and Video , Sequence data , Text Markup and linkage

Your Answer Audio and Video , Sequence data


Correct Answer

ROCK

Page 63 of 141


Your Answer ROCK


Correct Answer




Correct Answer



Select The Blank Question ________ architecture is more concerned with data access than memory access.

Correct Answer

MPP

Your Answer MPP


Correct Answer

True

Your Answer True

True/False Question Task of selection in data transformation forms part of extraction function.

Correct Answer

True

Your Answer False


Correct Answer

Decision Tree



Page 64 of 141


Correct Answer

Data transformation



True/False Question Matching the choice of DBMS with selected server hardware is not important for


False

Your Answer False


Metadata Roadmap for user Roadmap for user




True/False Question Database systems, data warehouse system and world wide web have become

mainstream information system. Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Bitmapped indexes are more suitable for data warehouse environment than for an

OLTP system Correct Answer

Bitmapped index

Your Answer Bitmapped index


Correct Answer

Usage

Your Answer Usage

Page 65 of 141


Multiple Choice Single Answer Question One major effort within data transformation is :-

Correct Answer

Improvement of data quality

Your Answer Analysis of data quality


Correct Answer


Your Answer Unsupervised clustering , Detection of cluster for accuracy , Clustering is fast

Multiple Choice Single Answer Question Which of the following technique is used to display group summary statistics?

Correct Answer

Quality control

Your Answer Survival analysis

Select The Blank Question ________ platform is the platform on which the data warehouse DBMS runs and

database exist. Correct Answer

Data storage

Your Answer Data storage

Multiple Choice Multiple Answer Question Class Comparison is performed through following steps :-

Correct Answer

Data Collection , Dimension relevance analysis , Presentation of derived comparison

Your Answer Data Collection , Dimension relevance analysis , Presentation of derived comparison

Select The Blank Question It is good practice to drop ________ before initial load.

Correct Answer

Index

Your Answer Index

Select The Blank Question ________ is the time consuming and less feasible approach for filling missing

values. Correct Answer

Filling missing values manually

Page 66 of 141


Your Answer Filling missing values manually

Multiple Choice Multiple Answer Question Basic Heuristic method of attribute subset selection includes following techniques :-

Correct Answer

Stepwise forward selection , Stepwise backward elimination

Your Answer Stepwise forward selection , Stepwise backward elimination , Combination of forward selection and backward elimination

True/False Question For maintaining the quality of data proper naming conventions help to make data

elements well understood by users. Correct Answer

True

Your Answer True

Select The Blank Question In ________ duplicate sub trees exist within the tree.

Correct Answer

Repetition

Your Answer Repetition

Select The Blank Question The technique of ________ enables concurrent input/output operations and

improves file's access performance substantially. Correct Answer

File striping

Your Answer File striping

Select The Blank Question ________ does not handle categorical attributes.

Correct Answer

CURE

Your Answer CURE


Correct Answer

Array

Your Answer Array

True/False

Page 67 of 141


Question Data in warehouse is primarily for query.

Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question Preprocessing steps of data in order to help improve accuracy, efficiency and

scalability of classification & prediction are :- Correct Answer



Multiple Choice Single Answer Question Which task in data transformation includes types of data manipulation on selected

parts of source data? Correct Answer

Splitting/Joining

Your Answer Splitting/Joining

True/False Question Business metadata is like a roadmap or easy to use information directory showing

contents and how to get there. Correct Answer

True

Your Answer True

True/False Question Data error discovery and data correction are two parts of data cleansing process.

Correct Answer

True

Your Answer False


Correct Answer



Select The Blank Question ________ technique is known as snapshot differential technique.

Correct Answer

Capture based on comparing files

Page 68 of 141


Your Answer Capture based on comparing files

Multiple Choice Multiple Answer Question The benefits of improved data quality are :-

Correct Answer

Better customer service , Improved productivity , Reliable strategic decision making

Your Answer Better customer service , Improved productivity , Reliable strategic decision making

Multiple Choice Single Answer Question Which technique of data extraction is available to non relational databases?

Correct Answer

Capture through transaction log

Your Answer Capture of static data


Correct Answer

Time series


True/False Question Noise in data means error or variance in measured variable.

Correct Answer

True

Your Answer True

Multiple Choice Multiple Answer Question Data mining at home can help to mine data related to :-

Correct Answer

Medical History , Cancer , Chromosome abnormalities

Your Answer Medical History , Chromosome abnormalities , Physiological conditions


Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question Simple matching approach is used for computing disimilarity between two objects

for :- Correct Nominal variable

Page 69 of 141


Answer Your Answer Nominal variable

Multiple Choice Multiple Answer Question Following are the reasons for getting data polluted :-

Correct Answer

Data aging , Input errors , Fraud

Your Answer Data aging , Input errors , Processing errors

Select The Blank Question ________ is the type of pilot for early delivery with broader scope and may be

integrated. Correct Answer


Your Answer Broad business pilot

Multiple Choice Multiple Answer Question Following are the issues to consider during data integration :-

Correct Answer

Schema integration , Redundancy , Detection and resolution of data values

Your Answer Schema integration , Redundancy , Detection and resolution of data values


Rough set Approach Noisy Data Previously unseen data

k-Nearest Neighbour Classifiers Learning Analogy Noisy Data

Class based Testing Instanace Based Learning Analogy

Generic Algorithms Natural Evolution Natural Evolution

Multiple Choice Single Answer Question When DDL statements are created using database software, so to create an index

system creates :- Correct Answer

B-Tree index

Your Answer B-Tree index

True/False Question The difficulties encountered in data transformation function relate to heterogeneity

of the source system. Correct Answer

True

Page 70 of 141


Your Answer False

True/False Question Data mining is not that much powerful tool for vast data such as gene sequences in

DNA analysis. Correct Answer

True

Your Answer True

Multiple Choice Single Answer Question When current extent on disk storage for a file is full, DBMS finds new extent and

allows an insertion of new record is known as :- Correct Answer

Dynamic extension

Your Answer Dynamic extension

Multiple Choice Multiple Answer Question Following are the types of normalization :-

Correct Answer

Min-Max Normalization , Z-score normalization , Normalization by scaling

Your Answer Min-Max Normalization , Z-score normalization , Normalization by scaling

Multiple Choice Multiple Answer Question In generation of numerical hierarchies for cluster analysis following techniques are

useful :- Correct Answer

Binning , Histogram analysis , Clustering

Your Answer Binning , Histogram analysis , Segmentation


Correct Answer

ROCK

Your Answer ROCK

Multiple Choice Multiple Answer Question Generalized linear model includes :-

Correct Answer

Logistic regression , Poisson regression

Your Answer Logistic regression , Poisson regression

Multiple Choice Single Answer Question Inherently Architected, Single, central storage of data about content, Centralized

rules and control, Seek quick result, these are the advantages of which type of data

Page 71 of 141


extraction? Correct Answer

Top down approach

Your Answer Top down approach


Correct Answer



Multiple Choice Single Answer Question Queries run faster to find exact match using which type of indexing?

Correct Answer

Clustered index

Your Answer Clustered index

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Select The BlankQuestion: ________ function of data staging component involves many forms of combining pieces of data from different sources. Correct Answer: Data Transformation Your Answer: Data Transformation Multiple Choice Multiple AnswerQuestion: The Main areas of Data Warehouse are :- Correct Answer: Data acquisition , Data Storage , Information Delivery Your Answer: Data acquisition , Data Storage , Information Delivery Select The BlankQuestion: Data cleansing and ________ methods of data mining helps in integration of genetic data and construction of warehouse for genetic data analysis. Correct Answer: Integration Your Answer: Integration Multiple Choice Multiple AnswerQuestion: The dimensions of spatial data cube are :- Correct Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial Your Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial Multiple Choice Single AnswerQuestion: In data reduction, the cluster representations of data are used to :- Correct Answer: Replace data Your Answer: Represent actual data Multiple Choice Multiple AnswerQuestion: Distinguishing characteristics of data warehouse architecture are :-

Page 72 of 141


Correct Answer: Different Objective Scope , Data Content , Flexible and Dynamic Your Answer: Different Objective Scope , Complete Analysis and Quick Response , Flexible and Dynamic Select The BlankQuestion: In data warehouse architecture, the ________ component interleaves with and connects other components. Correct Answer: Metadata Your Answer: Metadata Multiple Choice Multiple AnswerQuestion: Methods for outlier detection are categorised into following approaches :- Correct Answer: Statistical , Distance based , Deviation based Your Answer: Statistical , Distance based , Deviation based True/FalseQuestion: Metadata describes all the pertinent aspects of the data in data warehouse. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: Financial data called for banking and financial industry are often relatively :- Correct Answer: Complete , Reliable , High Quality Your Answer: Complete , Reliable , High Quality Multiple Choice Multiple AnswerQuestion: Classification and Prediction have following applications :- Correct Answer: Credit approval , Medical Diagnosis , Performance Prediction Your Answer: Credit approval , Medical Diagnosis , Performance Prediction True/FalseQuestion: Data Integration means multiple resourses may be combined. Correct Answer: True Your Answer: True Select The BlankQuestion: ________ can store aggregate and detail data at varying levels of resolution or abstraction. Correct Answer: Index tree Your Answer: Multidimensional index tree True/FalseQuestion: Moving data into staging area and performing data transformation function is a part of data acquisition. Correct Answer: True Your Answer: True True/FalseQuestion: Lower the level of detail, finer the data granularity. Correct Answer: True Your Answer: True Select The BlankQuestion: ________ is an alternative aggolomerative hierarchical clustering algorithm. Correct Answer: ROCK Your Answer: ROCK

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Multiple Choice Single AnswerQuestion: Real world databases are highly susceptible to noisy, missing and inconsistent data due to :- Correct Answer: Huge size of data Your Answer: Huge size of data Multiple Choice Single AnswerQuestion: Bayes Theorem is :- Correct Answer: P(H|X)=P(X|H)(P)/P(X) Your Answer: P(H|X)=P(X|H)(P)/P(X) Multiple Choice Multiple AnswerQuestion: Data mining Functionalities are :- Correct Answer: Charactrization and Discrimination , Association Analysis , Cluster Analysis Your Answer: Charactrization and Discrimination , Association Analysis , Cluster Analysis Select The BlankQuestion: ________ does not handle categorical attributes. Correct Answer: CURE Your Answer: ROCK Multiple Choice Single AnswerQuestion: Classification rules are extracted from Correct Answer: Decision Tree Your Answer: Decision Tree Select The BlankQuestion: The ________ record is one-to-many relationship with corresponding fact table record. Correct Answer: Dimension tables Your Answer: Dimension tables True/FalseQuestion: In Database system multidimensional index trees are primarily used for providing fast data access. Correct Answer: True Your Answer: True Match The FollowingQuestion Correct Answer Your AnswerData Mining Knowledge discovery Knowledge discovery Metadata Roadmap for user Roadmap for user Data storage Data management Data management Data staging Workbench for data Workbench for data True/FalseQuestion: COBWEB is a method of incremental conceptual clustering. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: The different analysis tools which are useful to detect unusual patterns such as large amount of cash flow at certain period by certain group of people are :- Correct Answer: Linkage analysis tool , Outlier analysis tool , Sequential pattern analysis tool Your Answer: Linkage analysis tool , Outlier analysis tool , Sequential pattern analysis tool

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Match The FollowingQuestion Correct Answer Your AnswerDisparate data Production data Production data Non volatile data Query and analysis Query and analysis Data granularity Level of detail Level of detail Data from external External data External data source Multiple Choice Multiple AnswerQuestion: Advantages of Wavelet transformation for clustering are :- Correct Answer: Unsupervised clustering , Detection of cluster for accuracy , Clustering is fast Your Answer: Unsupervised clustering , Detection of cluster for accuracy , Clustering is fast Multiple Choice Single AnswerQuestion: Association rules mining is based on :- Correct Answer: Clustering and Employing rules for classification Your Answer: Clustering and Employing rules for classification Multiple Choice Single AnswerQuestion: Data can be smoothed by filling the data to function such as :- Correct Answer: Regression Your Answer: Regression Multiple Choice Multiple AnswerQuestion: In physical design of data warehouse administration provides features like :- Correct Answer: Support backup and recovery , Query processing , Avoiding reorganizing of tables Your Answer: Avoiding reorganizing of tables , Support backup and recovery , Query processing True/FalseQuestion: MDDBMS stands for - Multilevel Database Management System. Correct Answer: False Your Answer: False Multiple Choice Single AnswerQuestion: Effect of one attibute value on a given class is independent of values of other attibute is called Correct Answer: Value independence Your Answer: Value independence Multiple Choice Multiple AnswerQuestion: When you use tool for design and development, following things take place with metadata :- Correct Answer: Metadata is no longer passive document , Metadata takes part in process , Metadata aids in automation of data warehouse process Your Answer: Metadata is no longer passive document , Metadata takes part in process , Metadata aids in automation of data warehouse process Multiple Choice Single AnswerQuestion: Data partitioning, data clustering are the techniques for :- Correct Answer: Performance enhancement Your Answer: Performance enhancement Multiple Choice Multiple AnswerQuestion: Knowledge discovery process includes :- Correct Answer: Data Cleaning , Data Intergration , Data Selectin

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Your Answer: Data Cleaning , Data Intergration , Data Selectin Multiple Choice Single AnswerQuestion: Query tool is meant for :- Correct Answer: Data acquisition Your Answer: Data acquisition Multiple Choice Multiple AnswerQuestion: The functions of data acquisition are :- Correct Answer: Data Extraction , Data Transformation Your Answer: Data Extraction , Data Transformation Select The BlankQuestion: ________ databases are one of the most poplularly available and rich information repositories. Correct Answer: Relational Your Answer: Relational True/FalseQuestion: From a Dataware house perspective data mining canbe viewed as an advanced stage of Online Analytical Programming. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: Which of the following clustering analysis method uses multiresolution approach? Correct Answer: STING , Wave Cluster Your Answer: STING , Wave Cluster True/FalseQuestion: The Structure that brings all the components together is known as Architecture. Correct Answer: True Your Answer: True Select The BlankQuestion: Human being have around ________ gene. Correct Answer: 100000 Your Answer: 100000 Select The BlankQuestion: ________ is the method used to predict the value of response variable from one to more variables. Correct Answer: Regression Your Answer: Regression Multiple Choice Single AnswerQuestion: Which of the following type executes query operations in pipeline manner? Correct Answer: Vertical parallelism Your Answer: Vertical parallelism True/FalseQuestion: Data cleansing means removing noisy and inconsistent data. Correct Answer: True Your Answer: True Multiple Choice Single Answer

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Question: When DDL statements are created using database software, so to create an index system creates :- Correct Answer: B-Tree index Your Answer: B-Tree index

LIST OF ATTEMPTED QUESTIONS AND ANSWERS True/FalseQuestion: Architecture comes first, tools follows it. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: Following are the theories for the basis of data mining :- Correct Answer: Pattern discovery , Probability theory , Microeconomic view Your Answer: Pattern discovery , Probability theory , Microeconomic view True/FalseQuestion: Data preprocessing is an important step in knowledge discovery process. Correct Answer: True Your Answer: True True/FalseQuestion: A distinguishing feature of Clementine is its object oriented extended module interface. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: The Architecture defines :- Correct Answer: Measurements , Standard , General Design Your Answer: Measurements , Standard , Standard Techniques Select The BlankQuestion: ________ technique contribute to machine learning, neural network, association mining, sequential pattern mining. Correct Answer: Pattern discovery Your Answer: Pattern discovery Match The FollowingQuestion Correct Answer Your AnswerClassification tool To filter unrelated attributes To characterize unusual access

sequence Clustering tool To group different cases Transaction activity using graph Data visualization Transaction activity using To group different cases Tool graphLinkage analysis tool To identify links To identify links Multiple Choice Multiple AnswerQuestion: Data processing techniques are :- Correct Answer: Cleansing , Integration , Transformation Your Answer: Cleansing , Integration , Transformation Select The BlankQuestion: Creating ________is violation of Normalization principles.

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Correct Answer: Array Your Answer: Cluster Multiple Choice Multiple AnswerQuestion: Building blocks of Data Warehouse are :- Correct Answer: Source Data , Data Staging , Management and Control Your Answer: Source Data , Data Staging , Data Manager Multiple Choice Single AnswerQuestion: OPTICS regarding clustering stands for :- Correct Answer: Ordering Points to identify the clustering Structure Your Answer: Ordering Points to identify the clustering Structure Select The BlankQuestion: ________ that unable massive quantities of data to be transported from one platform to another. Correct Answer: Data ports Your Answer: Data ports True/FalseQuestion: Sequential pattern analysis and similarity search techniques have been developed in data mining. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: The stored values of an attribute represents the value of attribute at this moment of time is :- Correct Answer: Current value Your Answer: Value of attribute Match The FollowingQuestion Correct Answer Your AnswerData loading tool Primary key generation Bulk extraction for full refresh Data modeling tool Reverse Engineering Reverse Engineering capabilities CapabilitiesData Extraction tool Bulk extraction for full Default values

refreshData transformation Default values Primary key generation tool True/FalseQuestion: Audio data mining can be an interesting alternative to visual mining. Correct Answer: True Your Answer: True Select The BlankQuestion: Most of the warehouses employ ________ database Management System. Correct Answer: Relational Your Answer: Hierarchical Multiple Choice Single AnswerQuestion: Which from the following are special programs that are stored on database and fired when certain predefined action occurs? Correct Answer: Triggers

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Your Answer: Events Multiple Choice Multiple AnswerQuestion: For processing metadata in informal delivery area, data can be referred back for :- Correct Answer: Data structure , Data transformation , Source data configuration Your Answer: Source data configuration , Data structure , Data transformation Multiple Choice Multiple AnswerQuestion: Following are the types of normalization :- Correct Answer: Min-Max Normalization , Z-score normalization , Normalization by scaling Your Answer: Min-Max Normalization , Z-score normalization , Normalization by scaling Multiple Choice Single AnswerQuestion: Following clustering method is classified as being agglomerative or divisive :- Correct Answer: Grid based Your Answer: Partioning based Multiple Choice Single AnswerQuestion: The big difference between data warehouse and any operational system is its :- Correct Answer: Usage Your Answer: Structure Multiple Choice Multiple AnswerQuestion: Following are the data movement options in data warehouse :- Correct Answer: Shared disk , Mass data transmission , Real time connection Your Answer: Shared disk , Mass data transmission , Real time connection True/FalseQuestion: Data Mining refers to extracting knowledge from larger amount of data. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: Main advantage of following which method is it's fast processing? Correct Answer: Grid based Your Answer: Density based Select The BlankQuestion: Indexed ________ engines search index,web pages and build huge keyword based indices which help to search sets of web pages containing certain keywords Correct Answer: Web Search Your Answer: Web Search Multiple Choice Multiple AnswerQuestion: Data base miner provides multiple data mining algorithms including :- Correct Answer: Discovery driven OLAP analysis , Association , Classification Your Answer: Discovery driven OLAP analysis , Association , Regression Select The BlankQuestion: ________ method of regression is useful when errors fails to satisfy normal conditions. Correct Answer: Robust Your Answer: Non parametric True/False

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Question: All data extraction, transformation, integration and staging jobs run on selected hardware under chosen operating system. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: Deviation based outlier detection identifes outliers by :- Correct Answer: Examining character of objects in groups Your Answer: Examining character of objects in groups Select The BlankQuestion: It is good practice to drop ________ before initial load. Correct Answer: Index Your Answer: Index Select The BlankQuestion: Most of DBMS have ________ index techniques as default index techniques. Correct Answer: B-Tree Your Answer: B-Tree Select The BlankQuestion: In ________ duplicate sub trees exist within the tree. Correct Answer: Repetition Your Answer: Fragmentation Multiple Choice Single AnswerQuestion: Which is the typical example of Grid based clustering method Correct Answer: STING Your Answer: DBSCAN True/FalseQuestion: In the data acquisition area, the data flow begins at the data sources and pauses at staging area. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: In data storage area , DBA uses metadata for processes of :- Correct Answer: Backup , Recovery , Tuning Database Your Answer: Backup , Recovery True/FalseQuestion: Descriptive mining takes perform ingerence on current data which predictive mining characterize the general properties of data in database Correct Answer: False Your Answer: True Select The BlankQuestion: When data block contains excessive amount of free space, performance ________ Correct Answer: Degenerates Your Answer: Degenerates Select The BlankQuestion: ________ platform is the platform on which the data warehouse DBMS runs and database exist. Correct Answer: Data storage

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Your Answer: Legacy Multiple Choice Multiple AnswerQuestion: Data integration means :- Correct Answer: Integrating database , Integrating cubes , Integrating files Your Answer: Integrating database , Integrating cubes , Integrating files Multiple Choice Single AnswerQuestion: Which technique analyze experimental data? Correct Answer: Analysis of variance Your Answer: Analysis of variance True/FalseQuestion: Smoothing by bin means each value in bin is replaced by the mean value of the bucket. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: Maintenance of cache consistency is the limitation of :- Correct Answer: MPP Your Answer: SMP Multiple Choice Multiple AnswerQuestion: Substantial portion of Business metadata originates from :- Correct Answer: Textual documents , Spreadsheets , Business rules Your Answer: Textual documents , Spreadsheets , Business rules Multiple Choice Single AnswerQuestion: Redundancies can be deleted by :- Correct Answer: Co-relational analysis Your Answer: Relational analysis Multiple Choice Single AnswerQuestion: Data reduction obtains a reduced representation of data set that is :- Correct Answer: Much smaller Your Answer: Much smaller

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Select The BlankQuestion: Data cleansing and ________ methods of data mining helps in integration of genetic data and construction of warehouse for genetic data analysis. Correct Answer: Integration Your Answer: Integration Select The BlankQuestion: ________ method of regression is useful when errors fails to satisfy normal conditions. Correct Answer: Robust Your Answer: Robust Multiple Choice Single AnswerQuestion: Bitmap index takes significantly less space than which type of index? Correct Answer: B-Tree index

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Your Answer: B-Tree index Select The BlankQuestion: ________components consists all the different ways of making the information from the data warehouse available to the user. Correct Answer: Information Delivery Your Answer: Information Delivery True/FalseQuestion: Architecture comes first, tools follows it. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: The Main areas of Data Warehouse are :- Correct Answer: Data acquisition , Data Storage , Information Delivery Your Answer: Data acquisition , Data Storage , Information Delivery Select The BlankQuestion: ________ is density based clustering method which computes on augumented clustering ordering for automic ordering for automatic and interactive cluster analysis Correct Answer: DBSCAN Your Answer: DBSCAN Match The FollowingQuestion Correct Answer Your AnswerLoad Utility High performance data High performance data loading,

loading, recovery recovery Query Governer Abort runaway query Active data catalog/directory Query Optimizer Parsing, optimizing query Parsing, optimizing query Query Management Balancing extraction of query Execution and rescheduling queries Multiple Choice Multiple AnswerQuestion: Source Data Component may be grouped into following categories :- Correct Answer: Production Data , Internal External Data Your Answer: Production Data , Internal External Data Select The BlankQuestion: ________ is the type of pilot for early delivery with broader scope and may be integrated. Correct Answer: Broad business pilot Your Answer: Broad business pilot Multiple Choice Multiple AnswerQuestion: The smoothing techniques are :- Correct Answer: Binning , Clustering , Regression Your Answer: Clustering , Regression Multiple Choice Single AnswerQuestion: Which of the following data warehouse component includes dependent data marts, special multidimensional database and full range of query and reporting facilities? Correct Answer: Information Delivery component Your Answer: Metadata Component True/FalseQuestion: The Structure that brings all the components together is known as Architecture.

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Correct Answer: True Your Answer: True Select The BlankQuestion: The technique of ________ enables concurrent input/output operations and improves file's access performance substantially. Correct Answer: File striping Your Answer: File striping True/FalseQuestion: Management architectural component manages and controls data acquisition functions. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: If many indexes are needed, then on which table which option is more preferable? Correct Answer: Splitting of tables Your Answer: Rearranging of tables Multiple Choice Single AnswerQuestion: Which of the following of Grid based clustering method explorates statistical information? Correct Answer: STING Your Answer: STING Multiple Choice Single AnswerQuestion: Attribute construction is the part of :- Correct Answer: Transformation Your Answer: Aggregation Multiple Choice Multiple AnswerQuestion: DNA sequences are comprised of :- Correct Answer: Adenine , Gaunine , Thymine Your Answer: Gaunine , Thymine , Adenine True/FalseQuestion: In decision tree internal nodes are denoted by ovals and leaf nodes are denoted by rectangles Correct Answer: False Your Answer: False Multiple Choice Single AnswerQuestion: Effect of one attibute value on a given class is independent of values of other attibute is called Correct Answer: Value independence Your Answer: Value independence Multiple Choice Single AnswerQuestion: Association rules mining is based on :- Correct Answer: Clustering and Employing rules for classification Your Answer: Clustering and Employing rules for classification Select The BlankQuestion: Most of DBMS have ________ index techniques as default index techniques. Correct Answer: B-Tree

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Your Answer: B-Tree Match The FollowingQuestion Correct Answer Your AnswerDisparate data Production data Production data Non volatile data Query and analysis Query and analysis Data granularity Level of detail Level of detail Data from external External data External data source Multiple Choice Single AnswerQuestion: Dimensionality reduction reduces the data set size by removing :- Correct Answer: Irrelevant attributes Your Answer: Irrelevant attributes Multiple Choice Multiple AnswerQuestion: Data reduction reduces data size by :- Correct Answer: Aggregation , Eliminating redundant features Your Answer: Aggregation , Eliminating redundant features , Restructuring True/FalseQuestion: Data integration merges data from multiple sources into coherent sources. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: The option "capture in source application technique of data extraction degrades performance of source application because :- Correct Answer: Additional processing needs Your Answer: Additional processing needed to capture changes on separate files Multiple Choice Single AnswerQuestion: Which of the following type executes query operations in pipeline manner? Correct Answer: Vertical parallelism Your Answer: Vertical parallelism Multiple Choice Single AnswerQuestion: Data partitioning, data clustering are the techniques for :- Correct Answer: Performance enhancement Your Answer: Performance enhancement True/FalseQuestion: COBWEB is an extension of CLASSIT for incremental clustering of contineous data. Correct Answer: False Your Answer: True Multiple Choice Multiple AnswerQuestion: Following are the issues to consider during data integration :- Correct Answer: Detection and resolution of data values , Schema integration , Redundancy Your Answer: Schema integration , Redundancy , Detection and resolution of data values Multiple Choice Single AnswerQuestion: Classification rules are extracted from Correct Answer: Decision Tree Your Answer: Decision Tree

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Multiple Choice Multiple AnswerQuestion: Which of the following clustering analysis method uses multiresolution approach? Correct Answer: STING , Wave Cluster Your Answer: STING , Wave Cluster True/FalseQuestion: Lower the level of detail, finer the data granularity. Correct Answer: True Your Answer: True Select The BlankQuestion: ________ does not handle categorical attributes. Correct Answer: CURE Your Answer: CURE Multiple Choice Multiple AnswerQuestion: When you use tool for design and development, following things take place with metadata :- Correct Answer: Metadata is no longer passive document , Metadata takes part in process , Metadata aids in automation of data warehouse process Your Answer: Metadata is no longer passive document , Metadata takes part in process , Metadata aids in automation of data warehouse process Multiple Choice Single AnswerQuestion: Bayes Theorem is :- Correct Answer: P(H|X)=P(X|H)(P)/P(X) Your Answer: P(H|X)=P(X|H)(P)/P(X) True/FalseQuestion: Data mining is not that much powerful tool for vast data such as gene sequences in DNA analysis. Correct Answer: True Your Answer: False Multiple Choice Multiple AnswerQuestion: The dimensions of spatial data cube are :- Correct Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial Your Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial True/FalseQuestion: Easily accessible metadata is crucial for end users. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: Classification and Prediction have following applications :- Correct Answer: Credit approval , Medical Diagnosis , Performance Prediction Your Answer: Credit approval , Medical Diagnosis , Performance Prediction True/FalseQuestion: All data extraction, transformation, integration and staging jobs run on selected hardware under chosen operating system. Correct Answer: True Your Answer: False Select The Blank

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Question: ________ databases are one of the most poplularly available and rich information repositories. Correct Answer: Relational Your Answer: Relational Multiple Choice Multiple AnswerQuestion: Advantages of Wavelet transformation for clustering are :- Correct Answer: Unsupervised clustering , Detection of cluster for accuracy , Clustering is fast Your Answer: Unsupervised clustering , Detection of cluster for accuracy , Clustering is fast Select The BlankQuestion: ________ is the platform for complex data transformation for the purpose of cleanse it Correct Answer: Separate optimal Platform Your Answer: Separate optimal Platform Select The BlankQuestion: ________ technique contribute to machine learning, neural network, association mining, sequential pattern mining. Correct Answer: Pattern discovery Your Answer: Pattern discovery

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Multiple Choice Single AnswerQuestion: Data matrix is :- Correct Answer: Object by variable structure Your Answer: Object by variable structure Multiple Choice Multiple AnswerQuestion: Following are the data movement options in data warehouse :- Correct Answer: Shared disk , Mass data transmission , Real time connection Your Answer: Shared disk , Mass data transmission , Real time connection Multiple Choice Single AnswerQuestion: In data reduction, the cluster representations of data are used to :- Correct Answer: Replace data Your Answer: Replace data True/FalseQuestion: Descriptive mining takes perform ingerence on current data which predictive mining characterize the general properties of data in database Correct Answer: False Your Answer: False Multiple Choice Single AnswerQuestion: For Incremental data loads the sequence is :- Correct Answer: Triggering ->Filtering ->data extraction -> Transformation ->Integration ->cleansing Your Answer: Triggering ->Filtering ->data extraction -> Transformation ->Integration ->cleansing True/FalseQuestion: COBWEB incrementally incarporates objects into classification tree. Correct Answer: True Your Answer: True

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True/FalseQuestion: Moving data into staging area and performing data transformation function is a part of data acquisition. Correct Answer: True Your Answer: True Select The BlankQuestion: Creating ________is violation of Normalization principles. Correct Answer: Array Your Answer: Cluster Multiple Choice Single AnswerQuestion: Which of the following method is built on Influece function? Correct Answer: DENCLUE Your Answer: STING Multiple Choice Single AnswerQuestion: Which of the following methods for regression is used on sparse data :- Correct Answer: Regression and log-linear model Your Answer: Regression and log-linear model Multiple Choice Multiple AnswerQuestion: Building blocks of Data Warehouse are :- Correct Answer: Source Data , Data Staging , Management and Control Your Answer: Source Data , Data Staging , Management and Control Multiple Choice Multiple AnswerQuestion: Metadata in a data warehouse falls into following categories :- Correct Answer: Operational Metadata , Extraction and Transformation metadata , End-user Metadata Your Answer: Operational Metadata , Extraction and Transformation metadata , End-user Metadata Multiple Choice Single AnswerQuestion: SMP stands for :- Correct Answer: Symmetric Multiprocessing Your Answer: Symmetric Multiprocessing Multiple Choice Multiple AnswerQuestion: Partitioning in physical design of data warehouse consists of :- Correct Answer: Fact tables and dimension tables , Number of partitions for each table , Criteria for dividing table Your Answer: Fact tables and dimension tables , Number of partitions for each table , Criteria for dividing table True/FalseQuestion: Data updates are common place in an operational database. Correct Answer: True Your Answer: True True/FalseQuestion: A cluster is a collection of similar data objects in same cluster and disimilar to objects in another cluster. Correct Answer: True Your Answer: True

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Multiple Choice Multiple AnswerQuestion: The functional areas of metadata are :- Correct Answer: Data Acquisition , Data storage , Information delivery Your Answer: Data transformation , Data Acquisition , Information delivery Select The BlankQuestion: ________ regression involves finding the best time to fit two variables. Correct Answer: Linear Your Answer: Linear Match The FollowingQuestion Correct Answer Your AnswerAdministration Providing support for all Support for System administration DBA functionsExtensibility Hybrid Extension to OLAP Hybrid Extension to OLTP database

databasePortability Across platform Across platform Query tool APIs For tools from loading Providing support for all DBA vendors

functions Multiple Choice Single AnswerQuestion: Which of the following type of processing provides high concurrency? Correct Answer: SMP Your Answer: ccNUMA Select The BlankQuestion: Semantic integration of ________ genome database is the important task of DNA analysis. Correct Answer: Heterogeneous and distributed Your Answer: Heterogeneous and distributed True/FalseQuestion: To remove noise from data is called as Smoothing. Correct Answer: True Your Answer: True Match The FollowingQuestion Correct Answer Your AnswerData Mining Knowledge discovery Knowledge discovery Metadata Roadmap for user Roadmap for user Data storage Data management Data management Data staging Workbench for data Workbench for data Multiple Choice Multiple AnswerQuestion: Knowledge discovery process includes :- Correct Answer: Data Cleaning , Data Intergration , Data Selectin Your Answer: Data Cleaning , Data Intergration , Data Selectin Multiple Choice Multiple AnswerQuestion: Methods for outlier detection are categorised into following approaches :- Correct Answer: Statistical , Distance based , Deviation based Your Answer: Statistical , Distance based , Deviation based Multiple Choice Single AnswerQuestion: Following clustering method is classified as being agglomerative or divisive :-

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Correct Answer: Grid based Your Answer: Grid based Select The BlankQuestion: In data warehouse architecture, the ________ component interleaves with and connects other components. Correct Answer: Metadata Your Answer: Metadata Multiple Choice Multiple AnswerQuestion: The ways of Intra query parallelization are :- Correct Answer: Horizontal parallelization , Vertical Parallelization , Hybrid parallelization Your Answer: Horizontal parallelization , Vertical Parallelization , Hybrid parallelization Multiple Choice Multiple AnswerQuestion: The objective for physical design of data warehouse are :- Correct Answer: Improve performance , Ensure scalability , Manage store Your Answer: Improve performance , Ensure scalability , Manage database True/FalseQuestion: Metadata is building block of data warehouse. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: What improves accuracy and speed of subsequent mining process? Correct Answer: Integration Your Answer: Regression Select The BlankQuestion: ________ are responsible for running queries and reports against data warehouse tables. Correct Answer: End users Your Answer: End users Select The BlankQuestion: For operational system, the stored data contains ________values. Correct Answer: Current data Your Answer: Current data Multiple Choice Single AnswerQuestion: Enterprise miner technique provides data mining algorithms including distinguishing feature as :- Correct Answer: Advanced Statistical and advanced visualization tool Your Answer: Robust Graphics tools Multiple Choice Multiple AnswerQuestion: Splitting of query by DBMS in intra query parallelization is for :- Correct Answer: Index read , Data read , Data joint Your Answer: Index read , Data read , Data joint Multiple Choice Single AnswerQuestion: Which of the following approach requires more computation? Correct Answer: Filter approach Your Answer: Filter approach

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True/FalseQuestion: Data in warehouse is primarily for query. Correct Answer: True Your Answer: False Multiple Choice Single AnswerQuestion: Simple matching approach is used for computing disimilarity between two objects for :- Correct Answer: Nominal variable Your Answer: Invariant variable Select The BlankQuestion: ________ are the inter platform devices that unable massive quantities of data to be transported from one platform to another. Correct Answer: Data ports Your Answer: Data ports Multiple Choice Multiple AnswerQuestion: Following are the types of normalization :- Correct Answer: Min-Max Normalization , Z-score normalization , Normalization by scaling Your Answer: Min-Max Normalization , Z-score normalization , Normalization by scaling Multiple Choice Multiple AnswerQuestion: The different definitions of metadata are :- Correct Answer: Data about data , Catalog of data , Data warehouse roadmap Your Answer: Data about data , Catalog of data , Data warehouse roadmap Select The BlankQuestion: ________ technique can be used to reduce the number of values for a given continuous attribute by dividing range of attributes into interval. Correct Answer: Descretization Your Answer: Descretization True/FalseQuestion: MDDBMS stands for - Multilevel Database Management System. Correct Answer: False Your Answer: False Multiple Choice Single AnswerQuestion: Main advantage of following which method is it's fast processing? Correct Answer: Grid based Your Answer: Grid based Select The BlankQuestion: ________ can store aggregate and detail data at varying levels of resolution or abstraction. Correct Answer: Index tree Your Answer: Index tree Select The BlankQuestion: ________ architecture is more concerned with data access than memory access. Correct Answer: MPP Your Answer: SMP


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True/False Question: Metadata is building block of data warehouse. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: The Main areas of Data Warehouse are :- Correct Answer: Data acquisition , Data Storage , Information Delivery Your Answer: Data Storage , Information Delivery , Data acquisition Select The BlankQuestion: ________ is the navigational map of data warehouse. Correct Answer: End user Metadata Your Answer: End user Metadata Multiple Choice Multiple AnswerQuestion: Data mining Functionalities are :- Correct Answer: Charactrization and Discrimination , Association Analysis , Cluster Analysis Your Answer: Charactrization and Discrimination , Association Analysis , Cluster Analysis Multiple Choice Single AnswerQuestion: Which of the following option is to share data by placing data at common place :- Correct Answer: Shared disk Your Answer: Shared disk Multiple Choice Multiple AnswerQuestion: Data mining is applicable to :- Correct Answer: Relational Database , Data Warehouse , Transaction Database Your Answer: Relational Database , Data Warehouse , Transaction Database Multiple Choice Single AnswerQuestion: Which of the following approach requires more computation? Correct Answer: Filter approach Your Answer: Filter approach Match The FollowingQuestion Correct Answer Your AnswerClustering Data tuples as objects Data tuples as objects Dimension reduction Removal of irrelevant data Removal of irrelevant data Data compression More computations More computations Wrapper approach Great accuracy Great accuracy

Select The BlankQuestion: According to ________ theory database schema consist of data and patterns that are stored in database. Correct Answer: Inductive databases Your Answer: Inductive databases True/False Question: Data cubes created for varying levels of abstraction are referred as cuboids. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: The Architecture defines :- Correct Answer: Measurements , Standard , General Design

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Your Answer: Measurements , Standard , General Design Multiple Choice Multiple AnswerQuestion: Source Data Component may be grouped into following categories :- Correct Answer: Production Data , Internal External Data Your Answer: Production Data , Internal External Data Multiple Choice Multiple AnswerQuestion: When you use tool for design and development, following things take place with metadata :- Correct Answer: Metadata is no longer passive document , Metadata takes part in process , Metadata aids in automation of data warehouse process Your Answer: Metadata aids in automation of data warehouse process , Metadata is no longer passive document , Metadata takes part in process True/False Question: Metadata describes all the pertinent aspects of the data in data warehouse. Correct Answer: True Your Answer: True Multiple Choice Multiple AnswerQuestion: Before moving data to data warehouse is has to go through :- Correct Answer: Transformation , Integration , Consolidation Your Answer: Transformation , Integration , Consolidation Match The FollowingQuestion Correct Answer Your AnswerDisparate data Production data Production data Non volatile data Query and analysis Query and analysis Data granularity Level of detail Level of detail Data from external External data External data source Select The BlankQuestion: ________ is the time consuming and less feasible approach for filling missing values. Correct Answer: Filling missing values manually Your Answer: Use of row mean Select The BlankQuestion: ________ is an alternative aggolomerative hierarchical clustering algorithm. Correct Answer: ROCK Your Answer: ROCK Multiple Choice Single AnswerQuestion: Which of the following is based on set of density distribution function clustering? Correct Answer: DBSCAN Your Answer: DBSCAN True/False Question: All data extraction, transformation, integration and staging jobs run on selected hardware under chosen operating system. Correct Answer: True Your Answer: True Select The Blank

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Question: ________ component of warehouse is responsible for coordinating services and activities within the data warehouse. Correct Answer: Management and Control Your Answer: Management and Control Select The BlankQuestion: ________ technique can be used to reduce the number of values for a given continuous attribute by dividing range of attributes into interval. Correct Answer: Descretization Your Answer: Descretization Multiple Choice Single AnswerQuestion: Which technique analyze experimental data? Correct Answer: Analysis of variance Your Answer: Analysis of variance Multiple Choice Single AnswerQuestion: Classification rules are extracted from Correct Answer: Decision Tree Your Answer: Decision Tree Select The BlankQuestion: ________components consists all the different ways of making the information from the data warehouse available to the user. Correct Answer: Information Delivery Your Answer: Information Delivery True/False Question: In Linear regression data are modeled to fit a straight line. Correct Answer: True Your Answer: True Select The BlankQuestion: ________ platform is the platform on which the data warehouse DBMS runs and database exist. Correct Answer: Data storage Your Answer: Data storage Multiple Choice Single AnswerQuestion: In data reduction, the cluster representations of data are used to :- Correct Answer: Replace data Your Answer: Replace data Multiple Choice Single AnswerQuestion: The DWT ( Discret Wavlet Transform) is a :- Correct Answer: Linear single processing technique Your Answer: Linear single processing technique Multiple Choice Multiple AnswerQuestion: Substantial portion of Business metadata originates from :- Correct Answer: Textual documents , Spreadsheets , Business rules Your Answer: Textual documents , Spreadsheets , Business rules True/False Question: A distinct feature of DB Miner is its data cube based online analytical mining. Correct Answer: True

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Your Answer: True Multiple Choice Multiple AnswerQuestion: Financial data called for banking and financial industry are often relatively :- Correct Answer: Complete , Reliable , High Quality Your Answer: Complete , Reliable , High Quality True/False Question: Smoothing by bin means each value in bin is replaced by the mean value of the bucket. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: SMP stands for :- Correct Answer: Symmetric Multiprocessing Your Answer: Symmetric Multiprocessing Select The BlankQuestion: In ________ type smoothing, minimum and maximum values in given bin are identified as bin boundaries. Correct Answer: Smoothing by bin boundaries Your Answer: Smoothing by bin boundaries Select The BlankQuestion: ________ is the method used to predict the value of response variable from one to more variables. Correct Answer: Regression Your Answer: Regression Multiple Choice Multiple AnswerQuestion: Data reduction reduces data size by :- Correct Answer: Aggregation , Eliminating redundant features Your Answer: Aggregation , Eliminating redundant features True/False Question: Sequential pattern analysis and similarity search techniques have been developed in data mining. Correct Answer: True Your Answer: True True/False Question: Lower the level of detail, finer the data granularity. Correct Answer: True Your Answer: True Select The BlankQuestion: ________ is the user who has all access privileges like system, database administrator, for table and views. Correct Answer: Security administrator Your Answer: Power user Multiple Choice Multiple AnswerQuestion: Generalized linear model includes :- Correct Answer: Logistic regression , Poisson regression Your Answer: Logistic regression , Poisson regression

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Multiple Choice Multiple AnswerQuestion: The main categories of Metadata in warehouse are :- Correct Answer: Operational , Extraction and transformation Metadata , End user Metadata Your Answer: Operational , Extraction and transformation Metadata , End user Metadata Multiple Choice Single AnswerQuestion: Data migration affects performance requiring multiple blocks to be read which can be adjusted by :- Correct Answer: Block percent free Your Answer: Block percent free True/False Question: Data Integration means multiple resourses may be combined. Correct Answer: True Your Answer: True Multiple Choice Single AnswerQuestion: Data reduction by volume can be used for data representation using which type of reduction? Correct Answer: Numerosity reduction Your Answer: Numerosity reduction Multiple Choice Single AnswerQuestion: Effect of one attibute value on a given class is independent of values of other attibute is called Correct Answer: Value independence Your Answer: Attirbute conditional independence Multiple Choice Single AnswerQuestion: Which of the following technique involves placing and managing related units of data in same physical block of storage Correct Answer: Clustering Your Answer: Clustering

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Multiple Choice Multiple AnswerQuestion: Data mining is applicable to :-Correct Answer: Transaction Database , Relational Database , Data Warehouse Your Answer: Transaction Database , Relational Database , Data Warehouse Select The BlankQuestion: ________ does not handle categorical attributes.Correct Answer: CUREYour Answer: Chameleon Multiple Choice Single AnswerQuestion: Main advantage of following which method is it's fast processing?Correct Answer: Grid basedYour Answer: Density based Select The Blank

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Question: When data block contains excessive amount of free space, performance ________Correct Answer: DegeneratesYour Answer: Degenerates Select The BlankQuestion: ________components consists all the different ways of making the information from the data warehouse available to the user.Correct Answer: Information DeliveryYour Answer: Information Delivery Multiple Choice Single AnswerQuestion: SMP stands for :-Correct Answer: Symmetric MultiprocessingYour Answer: Symmetric Multiprocessing Multiple Choice Multiple AnswerQuestion: The need for metadata is for :-Correct Answer: Using data warehouse , Building data warehouse , Administration of warehouse Your Answer: Building data warehouse , Administration of warehouse , Accessing data in warehouse Select The BlankQuestion: ________ are responsible for running queries and reports against data warehouse tables.Correct Answer: End usersYour Answer: Query tool specialist

Multiple Choice Multiple AnswerQuestion: Distinguishing characteristics of data warehouse architecture are :-Correct Answer: Different Objective Scope , Data Content , Flexible and Dynamic Your Answer: Data Content , Complete Analysis and Quick Response , Flexible and Dynamic Multiple Choice Single AnswerQuestion: Redundancies can be deleted by :-Correct Answer: Co-relational analysisYour Answer: Relational analysis True/FalseQuestion: Moving data into staging area and performing data transformation function is a part of data acquisition.Correct Answer: TrueYour Answer: True

Match The FollowingQuestion Correct Answer Your AnswerLoad Image To correspond to target files Offline data warehouseConstructive merge New record supercedes Populating data warehouse table first

timeInitial Load Populating data warehouse Applying data

table first timeIncremental Load Applying ongoing changes Applying ongoing changes True/FalseQuestion: COBWEB incrementally incarporates objects into classification tree.Correct Answer: True

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Your Answer: True Multiple Choice Multiple AnswerQuestion: Building blocks of Data Warehouse are :-Correct Answer: Source Data , Data Staging , Management and Control Your Answer: Source Data , Data Staging , Management and Control True/FalseQuestion: A process of grouping a set of physical or abstract objects into classes of similar objects is called clusieringCorrect Answer: TrueYour Answer: True Multiple Choice Multiple AnswerQuestion: Application server serves following purposes :-Correct Answer: To run middleware and establish connectivity , To execute management and control software , To manage metadata Your Answer: To run middleware and establish connectivity , To execute management and control software , To run OLTP application True/FalseQuestion: Data mining often requires data integration.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: The option "capture in source application technique of data extraction degrades performance of source application because :-Correct Answer: Additional processing needsYour Answer: Additional processing needs Multiple Choice Multiple AnswerQuestion: The main categories of Metadata in warehouse are :-Correct Answer: Operational , Extraction and transformation Metadata , End user Metadata Your Answer: Operational , Execution and Transformation Metadata , End user Metadata Multiple Choice Single AnswerQuestion: Which of the following method creates copies of data in distributed environment?Correct Answer: ReplicationYour Answer: Replication Multiple Choice Multiple AnswerQuestion: Common areas of application for mixed effect model includes :-Correct Answer: Multiple data , Repeated measures data , Block designs Your Answer: Multiple data , Repeated measures data , Block designs Multiple Choice Multiple AnswerQuestion: Following are the issues to consider during data integration :-Correct Answer: Detection and resolution of data values , Schema integration , Redundancy Your Answer: Schema integration , Redundancy , Inconsistency True/FalseQuestion: Smoothing by bin means each value in bin is replaced by the mean value of the bucket.Correct Answer: TrueYour Answer: True

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Select The BlankQuestion: In ________ duplicate sub trees exist within the tree.Correct Answer: RepetitionYour Answer: Replication Multiple Choice Multiple AnswerQuestion: The different analysis tools which are useful to detect unusual patterns such as large amount of cash flow at certain period by certain group of people are :-Correct Answer: Linkage analysis tool , Outlier analysis tool , Sequential pattern analysis tool Your Answer: Linkage analysis tool , Complexity definition tool , Sequential pattern analysis tool Select The BlankQuestion: According to ________ theory database schema consist of data and patterns that are stored in database.Correct Answer: Inductive databasesYour Answer: Data compression Multiple Choice Single AnswerQuestion: Which of the following methods for regression is used on sparse data :-Correct Answer: Regression and log-linear modelYour Answer: Regression and log-linear model Multiple Choice Single AnswerQuestion: The big difference between data warehouse and any operational system is its :-Correct Answer: UsageYour Answer: Structure Multiple Choice Single AnswerQuestion: In intermediate data extraction data capture through transaction log uses transaction from :-Correct Answer: Recovery from failureYour Answer: Logs of successful transaction Multiple Choice Multiple AnswerQuestion: SMP provides the features like :-Correct Answer: Controllers which are accessible to all processors , Each processor has full access to the shared memory though common bus , Each node has access to common set of disks Your Answer: Controllers which are accessible to all processors , Each node has access to common set of disks , It is cluster of nodes Match The FollowingQuestion Correct Answer Your AnswerData producer Responsible for data quality Foreign key preservedDomain values Prevalent problem Primary key introducedUpdate security Prevention of unauthorized Prevention of unauthorized

updates updatesReferential integrity Foreign key preserved Responsible for data quality True/FalseQuestion: Management architectural component manages and controls data acquisition functions.Correct Answer: TrueYour Answer: False

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Multiple Choice Single AnswerQuestion: EIS stands for :-Correct Answer: Executive Information SystemYour Answer: Extracted Integrated System True/FalseQuestion: NUMA provides better scalability than SMP.Correct Answer: TrueYour Answer: True Select The BlankQuestion: ________ architecture is more concerned with data access than memory access.Correct Answer: MPPYour Answer: MPP Select The BlankQuestion: Human being have around ________ gene.Correct Answer: 100000Your Answer: 1000000 Select The BlankQuestion: With the widespread option of ________ real-time connection is viable for data warehouse.Correct Answer: TCP/IPYour Answer: TCP/IP True/FalseQuestion: In Linear regression data are modeled to fit a straight line.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: Development and deployment of your data warehouse is joint effort between :-Correct Answer: IT staff and user representativesYour Answer: IT staff and developer True/FalseQuestion: Lower the level of detail, finer the data granularity.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: Which of the following technique involves placing and managing related units of data in same physical block of storageCorrect Answer: ClusteringYour Answer: Indexing True/FalseQuestion: Loan payment prediction and customer credit analysis are critical to business of bank.Correct Answer: TrueYour Answer: True Select The BlankQuestion: ________ is the platform for complex data transformation for the purpose of cleanse itCorrect Answer: Separate optimal PlatformYour Answer: Legacy platform

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Select The BlankQuestion: ________ clustering method follows statistical and neural network approach.Correct Answer: Model basedYour Answer: Hierarchical Method Multiple Choice Multiple AnswerQuestion: DNA sequences are comprised of :-Correct Answer: Adenine , Gaunine , Thymine Your Answer: Cytocine , Gaunine , Thymine Multiple Choice Multiple AnswerQuestion: Business metadata is useful for :-Correct Answer: Providing support to end users , For external view of data , Provides technical support to search data Your Answer: Providing support to end users , For external view of data , Provides technical support to search data , Helps in searching data Multiple Choice Single AnswerQuestion: Following clustering method is classified as being agglomerative or divisive :-Correct Answer: Grid basedYour Answer: Grid based

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Multiple Choice Multiple AnswerQuestion: Metadata in a data warehouse falls into following categories :-Correct Answer: End-user Metadata , Operational Metadata , Extraction and Transformation metadata Your Answer: End-user Metadata , Operational Metadata , Extraction and Transformation metadata Multiple Choice Multiple AnswerQuestion: Classification and Prediction have following applications :-Correct Answer: Credit approval , Medical Diagnosis , Performance Prediction Your Answer: Credit approval , Performance Prediction , Selective Marketing Multiple Choice Single AnswerQuestion: Data matrix is :-Correct Answer: Object by variable structureYour Answer: Two mode matrix Match The FollowingQuestion Correct Answer Your AnswerDisparate data Production data Internal dataNon volatile data Query and analysis Production dataData granularity Level of detail Archive dataData from external source External data Query and analysis

Multiple Choice Single AnswerQuestion: Bitmapped indexes are more suitable for data warehouse environment than for an OLTP systemCorrect Answer: Bitmapped indexYour Answer: B-Tree index

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Multiple Choice Multiple AnswerQuestion: Building blocks of Data Warehouse are :-Correct Answer: Source Data , Data Staging , Management and Control Your Answer: Source Data , Data Staging , Management and Control Multiple Choice Single AnswerQuestion: Queries run faster to find exact match using which type of indexing?Correct Answer: Clustered indexYour Answer: Clustered index True/FalseQuestion: In Purning method, postpruning requires more computation than prepruning yet generally leads to more reliable.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: Which of the following option is to share data by placing data at common place :-Correct Answer: Shared diskYour Answer: Mass data transmission Multiple Choice Single AnswerQuestion: The category in which the value of each attribute is preserved as status every time a change occurs is :-Correct Answer: Periodic statusYour Answer: Periodic status True/FalseQuestion: In decision tree internal nodes are denoted by ovals and leaf nodes are denoted by rectanglesCorrect Answer: FalseYour Answer: False True/FalseQuestion: Intelligent miner is an IBM data mining product.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: Which from the following are special programs that are stored on database and fired when certain predefined action occurs?Correct Answer: TriggersYour Answer: Triggers Multiple Choice Single AnswerQuestion: Attribute construction is the part of :-Correct Answer: TransformationYour Answer: Transformation True/FalseQuestion: Metadata acts like a nerve center.Correct Answer: TrueYour Answer: True Multiple Choice Multiple Answer

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Question: Data reduction includes :-Correct Answer: Single value decomposition , Wavelets , Regression Your Answer: Wavelets , Regression True/FalseQuestion: Data cleansing means removing noisy and inconsistent data.Correct Answer: TrueYour Answer: True True/FalseQuestion: Data in warehouse is primarily for query.Correct Answer: TrueYour Answer: True Multiple Choice Multiple AnswerQuestion: Preprocessing steps of data in order to help improve accuracy, efficiency and scalability of classification & prediction are :-Correct Answer: Data Cleaning , Relevance Analysis , Data Transformation Your Answer: Data Cleaning , Data Transformation Multiple Choice Multiple AnswerQuestion: Financial data called for banking and financial industry are often relatively :-Correct Answer: Complete , Reliable , High Quality Your Answer: Complete , Reliable , Correct Multiple Choice Single AnswerQuestion: Which of the option is not considered as the major function needed to get data ready?Correct Answer: Storing dataYour Answer: Extracting data Select The BlankQuestion: ________ technique can be used to reduce the number of values for a given continuous attribute by dividing range of attributes into interval.Correct Answer: DescretizationYour Answer: Reduction Multiple Choice Single AnswerQuestion: Simple matching approach is used for computing disimilarity between two objects for :-Correct Answer: Nominal variableYour Answer: Invariant variable Multiple Choice Multiple AnswerQuestion: The ways of Intra query parallelization are :-Correct Answer: Horizontal parallelization , Vertical Parallelization , Hybrid parallelization Your Answer: Horizontal parallelization , Hybrid parallelization , Homogenous parallelization True/FalseQuestion: Legacy data resides on Hierarchical or Network database.Correct Answer: TrueYour Answer: True Select The BlankQuestion: Data cleansing and ________ methods of data mining helps in integration of genetic data and construction of warehouse for genetic data analysis.Correct Answer: IntegrationYour Answer: Integration

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Select The BlankQuestion: ________ dimension of database in which primitive level data are spatial but generalization becomes non spatial.Correct Answer: Spatial to non spatialYour Answer: Spatial to non spatial Select The BlankQuestion: ________ can store aggregate and detail data at varying levels of resolution or abstraction.Correct Answer: Index treeYour Answer: Index tree Multiple Choice Multiple AnswerQuestion: Following factors play important role in financial analysis :-Correct Answer: Data warehouse , Data cubes , Outliner analysis Your Answer: Data warehouse , Data cubes , Outliner analysis Multiple Choice Multiple AnswerQuestion: Following are the types of normalization :-Correct Answer: Min-Max Normalization , Z-score normalization , Normalization by scaling Your Answer: Min-Max Normalization , Normalization by scaling Select The BlankQuestion: ________ are responsible for running queries and reports against data warehouse tables.Correct Answer: End usersYour Answer: End users Multiple Choice Single AnswerQuestion: Which of the following approach requires more computation?Correct Answer: Filter approachYour Answer: Wrapper approach Select The BlankQuestion: When data block contains excessive amount of free space, performance ________Correct Answer: DegeneratesYour Answer: Degenerates Multiple Choice Single AnswerQuestion: Which of the following type of processing provides high concurrency?Correct Answer: SMPYour Answer: MPP Select The BlankQuestion: ________ option of warehouse architecture provides incremental growth.Correct Answer: ClusterYour Answer: Cluster Match The FollowingQuestion Correct Answer Your AnswerConstructive merge New record supercedes New record supercedesInitial Load Populating data warehouse Populating data warehouse

table first time table first timeIncremental Load Applying ongoing changes Applying ongoing changesLoad Image To correspond to target files To correspond to target files

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Multiple Choice Multiple AnswerQuestion: Data cleansing routines work to clean the data by :-Correct Answer: Filling missing values , Smoothing noisy data Your Answer: Filling missing values , Smoothing noisy data , Resolving inconsistency True/FalseQuestion: From a Dataware house perspective data mining canbe viewed as an advanced stage of Online Analytical Programming.Correct Answer: TrueYour Answer: True Select The BlankQuestion: ________ platform is the platform on which the data warehouse DBMS runs and database exist.Correct Answer: Data storageYour Answer: Data storage Multiple Choice Multiple AnswerQuestion: The smoothing techniques are :-Correct Answer: Binning , Clustering , Regression Your Answer: Clustering , Regression , Insertion True/FalseQuestion: The elements of warehouse infrastructure are classified into operational and physical infrastructure.Correct Answer: TrueYour Answer: True Select The BlankQuestion: It is good practice to drop ________ before initial load.Correct Answer: IndexYour Answer: Splitting Select The BlankQuestion: ________ is an alternative aggolomerative hierarchical clustering algorithm.Correct Answer: ROCKYour Answer: CURE Select The BlankQuestion: Most of DBMS have ________ index techniques as default index techniques.Correct Answer: B-TreeYour Answer: B-Tree True/FalseQuestion: A distinguishing feature of Clementine is its object oriented extended module interface.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: Effect of one attibute value on a given class is independent of values of other attibute is calledCorrect Answer: Value independenceYour Answer: Value independence

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Multiple Choice Multiple AnswerQuestion: The information delivery methods from data warehouse are :-Correct Answer: Complex queries , MD Analysis , Statistical Analysis

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Multiple Choice Single AnswerQuestion: Capture at data source and that's why this method is quite reliable :-Correct Answer: Capture by database TriggersYour Answer: Capture in source application Multiple Choice Single AnswerQuestion: Association rules mining is based on :-Correct Answer: Clustering and Employing rules for classificationYour Answer: Rules for classification Select The BlankQuestion: A web server usually registers ________ entry for every access of a web pageCorrect Answer: WeblogYour Answer: Weblog Select The BlankQuestion: In data warehouse architecture, the ________ component interleaves with and connects other components.Correct Answer: MetadataYour Answer: Metadata True/FalseQuestion: To remove noise from data is called as Smoothing.Correct Answer: TrueYour Answer: True Select The BlankQuestion: Semantic integration of ________ genome database is the important task of DNA analysis.Correct Answer: Heterogeneous and distributedYour Answer: Homogenous and stagnant True/FalseQuestion: Moving data into staging area and performing data transformation function is a part of data acquisition.Correct Answer: TrueYour Answer: True Select The BlankQuestion: ________ does not handle categorical attributes.Correct Answer: CUREYour Answer: CURE True/FalseQuestion: Tools perform major functions in data warehouse environment.Correct Answer: TrueYour Answer: True

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Multiple Choice Multiple AnswerQuestion: Common areas of application for mixed effect model includes :-Correct Answer: Multiple data , Repeated measures data , Block designs Your Answer: Multiple data , Dimensional data , Block designs Multiple Choice Single AnswerQuestion: Bitmap index takes significantly less space than which type of index?Correct Answer: B-Tree indexYour Answer: Clustered index Multiple Choice Multiple AnswerQuestion: Data processing is done for :-Correct Answer: Improving the efficiency , Ease of mining Your Answer: Improving the efficiency , Removing redundancy , Removing complexity Select The BlankQuestion: ________ function of data staging component involves many forms of combining pieces of data from different sources.Correct Answer: Data TransformationYour Answer: Data Transformation Multiple Choice Multiple AnswerQuestion: Mining values can be removed by :-Correct Answer: Filling values manually , Use of global constant , Use of attribute mean Your Answer: Filling values manually , Use of global constant , Use of row mean Multiple Choice Multiple AnswerQuestion: The dimensions of spatial data cube are :-Correct Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial Your Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial Select The BlankQuestion: In ________ duplicate sub trees exist within the tree.Correct Answer: RepetitionYour Answer: Replication Select The BlankQuestion: ________ are the inter platform devices that unable massive quantities of data to be transported from one platform to another.Correct Answer: Data portsYour Answer: Data cubes Match The FollowingQuestion Correct Answer Your AnswerData loading tool Primary key generation Formulating and running queriesData modeling tool Reverse Engineering capabilities Primary key generationData Extraction tool Bulk extraction for full refresh Bulk extraction for full

refreshData transformation toolDefault values Formulating and running queries

Select The BlankQuestion: Most of the warehouses employ ________ database Management System.Correct Answer: RelationalYour Answer: Relational Multiple Choice Multiple Answer

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Question: Metadata types can be classified as :-Correct Answer: Business metadata , Technical metadata Your Answer: Business metadata , Technical metadata , Logical metadata True/FalseQuestion: COBWEB is an extension of CLASSIT for incremental clustering of contineous data.Correct Answer: FalseYour Answer: True Multiple Choice Single AnswerQuestion: Which type of analysis of DNA facilitates discovery of group of genes and study of interaction and relationship between them?Correct Answer: Association analysisYour Answer: Generic data analysis Multiple Choice Multiple AnswerQuestion: Following are the issues to consider during data integration :-Correct Answer: Schema integration , Redundancy , Detection and resolution of data values Your Answer: Schema integration , Redundancy , Detection and resolution of data values Multiple Choice Single AnswerQuestion: Data migration affects performance requiring multiple blocks to be read which can be adjusted by :-Correct Answer: Block percent freeYour Answer: Block percent vacant Multiple Choice Multiple AnswerQuestion: Normalization improves :-Correct Answer: Efficiency , Accuracy Your Answer: Efficiency , Accuracy True/FalseQuestion: Smoothing by bin means each value in bin is replaced by the mean value of the bucket.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: In intermediate data extraction data capture through transaction log uses transaction from :-Correct Answer: Recovery from failureYour Answer: All Transaction Select The BlankQuestion: Indexed ________ engines search index,web pages and build huge keyword based indices which help to search sets of web pages containing certain keywordsCorrect Answer: Web SearchYour Answer: Web Search Multiple Choice Single AnswerQuestion: The first step of attibute oriented induction is :-Correct Answer: Data focusingYour Answer: Data Collection Multiple Choice Single Answer

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Question: Enterprise miner technique provides data mining algorithms including distinguishing feature as :-Correct Answer: Advanced Statistical and advanced visualization toolYour Answer: Robust Graphics tools Select The BlankQuestion: ________ is density based clustering method which computes on augumented clustering ordering for automic ordering for automatic and interactive cluster analysisCorrect Answer: DBSCANYour Answer: Hierachical True/FalseQuestion: A process of grouping a set of physical or abstract objects into classes of similar objects is called clusieringCorrect Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: Grouped data can be analyzed with the technique :-Correct Answer: Mixed effect modelYour Answer: Regression Multiple Choice Multiple AnswerQuestion: Which of the following clustering analysis method uses multiresolution approach?Correct Answer: STING , Wave Cluster Your Answer: STING , Only Wave Cluster True/FalseQuestion: COBWEB is a method of incremental conceptual clustering.Correct Answer: TrueYour Answer: True Multiple Choice Multiple AnswerQuestion: Source Data Component may be grouped into following categories :-Correct Answer: Production Data , Internal External Data Your Answer: Production Data , Internal External Data , Non Analyzed data Multiple Choice Single AnswerQuestion: Which type of indexing do not work with data whose selectivity is low :-Correct Answer: B-Tree indexYour Answer: B-Tree index True/FalseQuestion: Easily accessible metadata is crucial for end users.Correct Answer: TrueYour Answer: False Match The FollowingQuestion Correct Answer Your AnswerClementine Integral solutions SASIntelligent miner IBM IBMEnterprise miner SAS DB miner technologyMineset Silicon Graphics Integral solutions Multiple Choice Single AnswerQuestion: Data can be smoothed by filling the data to function such as :-

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Correct Answer: RegressionYour Answer: Clustering True/FalseQuestion: Data mining is not that much powerful tool for vast data such as gene sequences in DNA analysis.Correct Answer: TrueYour Answer: True Multiple Choice Multiple AnswerQuestion: The need for metadata is for :-Correct Answer: Using data warehouse , Building data warehouse , Administration of warehouse Your Answer: Using data warehouse , Building data warehouse , Administration of warehouse Multiple Choice Multiple AnswerQuestion: The Architecture defines :-Correct Answer: Measurements , Standard , General Design Your Answer: Measurements , General Design , Standard Techniques Multiple Choice Multiple AnswerQuestion: Following are the theories for the basis of data mining :-Correct Answer: Pattern discovery , Probability theory , Microeconomic view Your Answer: Pattern discovery , Probability theory , Macroeconomic view Select The BlankQuestion: In ________ type smoothing, minimum and maximum values in given bin are identified as bin boundaries.Correct Answer: Smoothing by bin boundariesYour Answer: Smoothing by bin boundaries True/FalseQuestion: Data Integration means multiple resourses may be combined.Correct Answer: TrueYour Answer: True Multiple Choice Single AnswerQuestion: Which of the following function involves data cleaning, data standardizing and summarizing?Correct Answer: Transforming dataYour Answer: Transforming data

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Select The BlankQuestion: For operational system, the stored data contains ________values.Correct Answer: Current dataYour Answer: Current data Select The BlankQuestion: ________ is the user who has system access privileges but no database administration privileges as well as not for table and views.Correct Answer: Network administratorYour Answer: Security administrator

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Multiple Choice Single AnswerQuestion: Selection of which part of data warehouse hardware is ' Bit your bottom dollar'?Correct Answer: Server hardwareYour Answer: Workstation hardware Multiple Choice Single AnswerQuestion: The Clustering method DBSCAN stands for :-Correct Answer: Desity Based Spatial clustering of Application with NoiseYour Answer: Desity Based Spatial clustering of Application with Noise Multiple Choice Single AnswerQuestion: Which of the option is not considered as the major function needed to get data ready?Correct Answer: Storing dataYour Answer: Storing data Multiple Choice Single AnswerQuestion: Which from the following are special programs that are stored on database and fired when certain predefined action occurs?Correct Answer: TriggersYour Answer: Triggers Multiple Choice Multiple AnswerQuestion: User must have proper access to metadata for performing responsibilities of :-Correct Answer: Design , Administration Your Answer: Administration , Management True/FalseQuestion: Architecture comes first, tools follows it.Correct Answer: TrueYour Answer: True True/FalseQuestion: In the data acquisition area, the data flow begins at the data sources and pauses at staging area.Correct Answer: TrueYour Answer: False Multiple Choice Single AnswerQuestion: OPTICS regarding clustering stands for :-Correct Answer: Ordering Points to identify the clustering StructureYour Answer: Ordering Points to identify the clustering Structure Multiple Choice Multiple AnswerQuestion: In data storage area metadata recorded by processes is used for :-Correct Answer: Users , Development , Administration Your Answer: Development , Administration Multiple Choice Multiple AnswerQuestion: Data reduction reduces data size by :-Correct Answer: Aggregation , Eliminating redundant features Your Answer: Aggregation , Eliminating redundant features Multiple Choice Single AnswerQuestion: Which of the following is based on set of density distribution function clustering?Correct Answer: DBSCAN

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Your Answer: DBSCAN True/FalseQuestion: A distinct feature of DB Miner is its data cube based online analytical mining.Correct Answer: TrueYour Answer: True True/FalseQuestion: Metadata describes all the pertinent aspects of the data in data warehouse.Correct Answer: TrueYour Answer: True Match The FollowingQuestion Correct Answer Your AnswerExtraction is manual/Tool based Method of extraction Method of extractionIdentify source application Source identification Source identificationDenote time window Time window Time windowHandling unextractable input records Exception handling Exception handling Multiple Choice Single AnswerQuestion: The stored values of an attribute represents the value of attribute at this moment of time is :-Correct Answer: Current valueYour Answer: Current attribute True/FalseQuestion: The Structure that brings all the components together is known as Architecture.Correct Answer: TrueYour Answer: True Select The BlankQuestion: ________ is the navigational map of data warehouse.Correct Answer: End user MetadataYour Answer: End user Metadata Multiple Choice Single AnswerQuestion: Simple matching approach is used for computing disimilarity between two objects for :-Correct Answer: Nominal variableYour Answer: Nominal variable Multiple Choice Multiple AnswerQuestion: Preprocessing steps of data in order to help improve accuracy, efficiency and scalability of classification & prediction are :-Correct Answer: Data Cleaning , Relevance Analysis , Data Transformation Your Answer: Data Cleaning , Relevance Analysis Multiple Choice Single AnswerQuestion: Which of the following clustering algorithm integrates density based and grid based clustering?Correct Answer: CLQUEYour Answer: STING True/FalseQuestion: Data mining is not that much powerful tool for vast data such as gene sequences in DNA analysis.Correct Answer: True

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Your Answer: True Select The BlankQuestion: ________ is the time consuming and less feasible approach for filling missing values.Correct Answer: Filling missing values manuallyYour Answer: Filling missing values manually Match The FollowingQuestion Correct Answer Your AnswerDisparate data Production data Production dataNon volatile data Query and analysis Query and analysisData granularity Level of detail Level of detailData from external source External data External data True/FalseQuestion: Sequential pattern analysis and similarity search techniques have been developed in data mining.Correct Answer: TrueYour Answer: True Multiple Choice Multiple AnswerQuestion: Data processing is done for :-Correct Answer: Improving the efficiency , Ease of mining Your Answer: Improving the efficiency , Ease of mining Multiple Choice Multiple AnswerQuestion: The smoothing techniques are :-Correct Answer: Binning , Clustering , Regression Your Answer: Binning , Clustering , Regression Multiple Choice Single AnswerQuestion: Many methods for data smoothing are also methods for data reduction involving :-Correct Answer: DiscretizationYour Answer: Discretization Multiple Choice Single AnswerQuestion: In data reduction, the cluster representations of data are used to :-Correct Answer: Replace dataYour Answer: Represent actual data True/FalseQuestion: In Purning method, postpruning requires more computation than prepruning yet generally leads to more reliable.Correct Answer: TrueYour Answer: True Select The BlankQuestion: ________ component of warehouse is responsible for coordinating services and activities within the data warehouse.Correct Answer: Management and ControlYour Answer: Management and Control Select The BlankQuestion: ________ function of data staging component involves many forms of combining pieces of data from different sources.Correct Answer: Data Transformation

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Your Answer: Data Transformation Multiple Choice Single AnswerQuestion: Which type of following clustering computes augumented cluster ordering?Correct Answer: OPTICSYour Answer: CLQUE True/FalseQuestion: Data cleansing means removing noisy and inconsistent data.Correct Answer: TrueYour Answer: True Multiple Choice Multiple AnswerQuestion: Classification and Prediction have following applications :-Correct Answer: Credit approval , Medical Diagnosis , Performance Prediction Your Answer: Credit approval , Medical Diagnosis , Performance Prediction Select The BlankQuestion: Creating ________is violation of Normalization principles.Correct Answer: ArrayYour Answer: Structure Multiple Choice Multiple AnswerQuestion: The areas of classification for metadata are :-Correct Answer: Development/usage , Technical/business , BackRoom/Front Room Your Answer: Development/usage , BackRoom/Front Room , Administration Select The BlankQuestion: ________ databases are one of the most poplularly available and rich information repositories.Correct Answer: RelationalYour Answer: Relational Multiple Choice Multiple AnswerQuestion: The ways of Intra query parallelization are :-Correct Answer: Horizontal parallelization , Vertical Parallelization , Hybrid parallelization Your Answer: Horizontal parallelization , Vertical Parallelization , Hybrid parallelization True/FalseQuestion: Data Mining refers to extracting knowledge from larger amount of data.Correct Answer: TrueYour Answer: True Multiple Choice Multiple AnswerQuestion: Data base miner provides multiple data mining algorithms including :-Correct Answer: Discovery driven OLAP analysis , Association , Classification Your Answer: Association , Classification , Regression Multiple Choice Multiple AnswerQuestion: Data transformation includes :-Correct Answer: Smoothing , Aggregation , Generalization Your Answer: Smoothing , Aggregation , Generalization Select The BlankQuestion: ________ includes Normalization and Aggregation as data preprocessing procedures.Correct Answer: Data transformation

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Your Answer: Data transformation Multiple Choice Single AnswerQuestion: Association rules mining is based on :-Correct Answer: Clustering and Employing rules for classificationYour Answer: Clustering and Employing rules for classification Select The BlankQuestion: Semantic integration of ________ genome database is the important task of DNA analysis.Correct Answer: Heterogeneous and distributedYour Answer: Heterogeneous and distributed Select The BlankQuestion: ________ regression involves finding the best time to fit two variables.Correct Answer: LinearYour Answer: Linear

LIST OF ATTEMPTED QUESTIONS AND ANSWERS True/False Question: Data cubes created for varying levels of abstraction are referred as cuboids. Correct Answer: True Your Answer: True True/False Question: Data mining is not that much powerful tool for vast data such as gene sequences in DNA analysis. Correct Answer: True Your Answer: True Select The Blank Question: ________ pilot proves validity of data warehousing concept to users and top management. Correct Answer: Proof of concept Your Answer: User tool appreciation Multiple Choice Multiple Answer Question: Mining values can be removed by :- Correct Answer: Filling values manually , Use of global constant , Use of attribute mean Your Answer: Filling values manually , Use of global constant , Use of attribute mean Multiple Choice Single Answer Question: Which of the following type of processing provides high concurrency? Correct Answer: SMP Your Answer: SMP True/False Question: Lower the level of detail, finer the data granularity. Correct Answer: True Your Answer: True Multiple Choice Single Answer

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Question: Effect of one attibute value on a given class is independent of values of other attibute is called Correct Answer: Value independence Your Answer: Value independence Select The Blank Question: According to ________ theory database schema consist of data and patterns that are stored in database. Correct Answer: Inductive databases Your Answer: Inductive databases True/False Question: A cluster is a collection of similar data objects in same cluster and disimilar to objects in another cluster. Correct Answer: True Your Answer: True Multiple Choice Multiple Answer Question: Warehouse Operational infrastructure is to support each architecture component consists of :- Correct Answer: People , Procedures , Management software Your Answer: People , Procedures , Management software Multiple Choice Multiple Answer Question: Time variant nature of the data in data warehouse :- Correct Answer: Allows for analysis of the past , Relate information to the present , Enables forecasts for the future Your Answer: Allows for analysis of the past , Relate information to the present , Enables forecasts for the future Multiple Choice Multiple Answer Question: Methods for outlier detection are categorised into following approaches :- Correct Answer: Statistical , Distance based , Deviation based Your Answer: Distance based , Deviation based , Diversion based Select The Blank Question: ________ regression involves finding the best time to fit two variables. Correct Answer: Linear Your Answer: Linear Multiple Choice Single Answer Question: Association rules mining is based on :- Correct Answer: Clustering and Employing rules for classification Your Answer: Clustering and Employing rules for classification True/False Question: Smoothing by bin means each value in bin is replaced by the mean value of the bucket. Correct Answer: True Your Answer: True True/False Question: Metadata describes all the pertinent aspects of the data in data warehouse. Correct Answer: True Your Answer: True

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Multiple Choice Multiple Answer Question: Following are the theories for the basis of data mining :- Correct Answer: Pattern discovery , Probability theory , Microeconomic view Your Answer: Microeconomic view , Pattern discovery , Probability theory Multiple Choice Single Answer Question: Which technique is used to predict categorical response variable? Correct Answer: Discriminant analysis Your Answer: Analysis of variance Multiple Choice Single Answer Question: EIS stands for :- Correct Answer: Executive Information System Your Answer: Executive Information System Match The Following Question Correct Answer Your AnswerIntegration Data merging from multiple sources Data merging from multiple sources Binning Sorted, neighbourhood data Sorted, neighbourhood data Clustering Similar values Similar values Regression Filtering of data Filtering of data Multiple Choice Single Answer Question: The DWT ( Discret Wavlet Transform) is a :- Correct Answer: Linear single processing technique Your Answer: Linear single processing technique True/False Question: Data mining often requires data integration. Correct Answer: True Your Answer: True Multiple Choice Single Answer Question: Which is the typical example of Grid based clustering method Correct Answer: STING Your Answer: DBSCAN Multiple Choice Single Answer Question: Classification rules are extracted from Correct Answer: Decision Tree Your Answer: Decision Tree Multiple Choice Multiple Answer Question: For processing metadata in informal delivery area, data can be referred back for :- Correct Answer: Source data configuration , Data structure , Data transformation Your Answer: Source data configuration , Data structure , Data transformation Match The Following Question Correct Answer Your AnswerConstructive merge New record supercedes New record supercedes Initial Load Populating data warehouse Populating data warehouse table first

table first time time Incremental Load Applying ongoing changes Applying ongoing changes Load Image To correspond to target files To correspond to target files Select The Blank

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Question: ________ is the clustering method which encounters difficultes regarding the selection of merge/split points Correct Answer: Hierachical Your Answer: Hierachical Multiple Choice Multiple Answer Question: Substantial portion of Business metadata originates from :- Correct Answer: Textual documents , Spreadsheets , Business rules Your Answer: Textual documents , Spreadsheets , Business rules True/False Question: In Purning method, postpruning requires more computation than prepruning yet generally leads to more reliable. Correct Answer: True Your Answer: True Select The Blank Question: Human being have around ________ gene. Correct Answer: 100000 Your Answer: 100000 Multiple Choice Single Answer Question: Which of the following type executes query operations in pipeline manner? Correct Answer: Vertical parallelism Your Answer: Vertical parallelism Select The Blank Question: In ________ duplicate sub trees exist within the tree. Correct Answer: Repetition Your Answer: Repetition Multiple Choice Single Answer Question: Real world databases are highly susceptible to noisy, missing and inconsistent data due to :- Correct Answer: Huge size of data Your Answer: Complexity in data Multiple Choice Single Answer Question: The technique of data clustering facilitates :- Correct Answer: Serial access Your Answer: Random access Multiple Choice Multiple Answer Question: Before moving data to data warehouse is has to go through :- Correct Answer: Transformation , Integration , Consolidation Your Answer: Integration , Summarization , Consolidation Multiple Choice Single Answer Question: Bayes Theorem is :- Correct Answer: P(H|X)=P(X|H)(P)/P(X) Your Answer: P(H|X)=P(X)(PH)/P(X|H) True/False Question: MDDBMS stands for - Multilevel Database Management System. Correct Answer: False Your Answer: False

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Multiple Choice Multiple Answer Question: DNA sequences are comprised of :- Correct Answer: Adenine , Gaunine , Thymine Your Answer: Adenine , Cytocine , Gaunine , Thymine Multiple Choice Multiple Answer Question: Financial data called for banking and financial industry are often relatively :- Correct Answer: Complete , Reliable , High Quality Your Answer: Complete , Reliable , High Quality Multiple Choice Single Answer Question: Deviation based outlier detection identifes outliers by :- Correct Answer: Examining character of objects in groups Your Answer: Examining distance between objects Multiple Choice Multiple Answer Question: The functions of data acquisition are :- Correct Answer: Data Extraction , Data Transformation Your Answer: Data Extraction , Data Transformation , Data cleansing , Data storing Select The Blank Question: ________ databases are one of the most poplularly available and rich information repositories. Correct Answer: Relational Your Answer: Relational Multiple Choice Single Answer Question: A Wavelet transformation is :- Correct Answer: Single processing Technique that decomposes signals into different frequency subbands Your Answer: Single processing Technique that composes signals into different frequency subbands Select The Blank Question: Creating ________is violation of Normalization principles. Correct Answer: Array Your Answer: Array Select The Blank Question: ________ method of regression is useful when errors fails to satisfy normal conditions. Correct Answer: Robust Your Answer: Robust True/False Question: Sequential pattern analysis and similarity search techniques have been developed in data mining. Correct Answer: True Your Answer: True Multiple Choice Single Answer Question: SMP stands for :- Correct Answer: Symmetric Multiprocessing Your Answer: Symmetric Multiprocessing

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LIST OF ATTEMPTED QUESTIONS AND ANSWERS sheetu 2 Multiple Choice Multiple Answer Question: Data Mining means :- Correct Answer: Knowledge mining from database , Data /Pattern analysis , Data Archelogy Your Answer: Data Archelogy , Knowledge mining from database , Data /Pattern analysis Select The Blank Question: ________ technique contribute to machine learning, neural network, association mining, sequential pattern mining. Correct Answer: Pattern discovery Your Answer: Pattern discovery Match The Following Question Correct Answer Your AnswerOperating systems Security, reliability, availability Security, reliability, availability CompatibilityData Acquisition Data Extraction, Data Extraction, Transformation,

Transformation, cleansing, cleansing, integrationintegration

Data Storage Data loading , Archiving Data loading , Archiving Information Delivery Report generation, query Report generation, query processing

processing and complex and complex analysis analysis

True/False Question: The Structure that brings all the components together is known as Architecture. Correct Answer: True Your Answer: True Multiple Choice Multiple Answer Question: Advantages of Wavelet transformation for clustering are :- Correct Answer: Unsupervised clustering , Detection of cluster for accuracy , Clustering is fast Your Answer: Unsupervised clustering , Detection of cluster for accuracy , Decomposition of cluster for accuracy Multiple Choice Multiple Answer Question: The Main areas of Data Warehouse are :- Correct Answer: Data acquisition , Data Storage , Information Delivery Your Answer: Data Stage , Data Storage , Information Delivery True/False Question: In decision tree internal nodes are denoted by ovals and leaf nodes are denoted by rectangles Correct Answer: False Your Answer: False True/False Question: In Database system multidimensional index trees are primarily used for providing fast data access. Correct Answer: True Your Answer: True Select The Blank Question: ________ is the platform for complex data transformation for the purpose of cleanse it

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Correct Answer: Separate optimal Platform Your Answer: Separate optimal Platform Multiple Choice Single Answer Question: Bitmapped indexes are more suitable for data warehouse environment than for an OLTP system Correct Answer: Bitmapped index Your Answer: Bitmapped index Multiple Choice Single Answer Question: The Clustering method DBSCAN stands for :- Correct Answer: Desity Based Spatial clustering of Application with Noise Your Answer: Desity Based Spatial clustering of Application with Noise Select The Blank Question: ________ is an alternative aggolomerative hierarchical clustering algorithm. Correct Answer: ROCK Your Answer: ROCK Multiple Choice Single Answer Question: Query tool is meant for :- Correct Answer: Data acquisition Your Answer: Information delivery Select The Blank Question: ________ are responsible for running queries and reports against data warehouse tables. Correct Answer: End users Your Answer: End users Multiple Choice Multiple Answer Question: Classification and Prediction have following applications :- Correct Answer: Credit approval , Medical Diagnosis , Performance Prediction Your Answer: Credit approval , Medical Diagnosis , Performance Prediction Select The Blank Question: ________ architecture is more concerned with data access than memory access. Correct Answer: MPP Your Answer: MPP Select The Blank Question: ________ are the inter platform devices that unable massive quantities of data to be transported from one platform to another. Correct Answer: Data ports Your Answer: Data ports Multiple Choice Single Answer Question: Which technique analyze experimental data? Correct Answer: Analysis of variance Your Answer: Regression True/False Question: Data classification is two step process in which first step includes classfication of model and in second step model describes set of data. Correct Answer: False Your Answer: True

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Select The Blank Question: ________ clustering method follows statistical and neural network approach. Correct Answer: Model based Your Answer: Model based Multiple Choice Single Answer Question: Which of the following methods for regression is used on sparse data :- Correct Answer: Regression and log-linear model Your Answer: Regression and log-linear model True/False Question: Audio data mining can be an interesting alternative to visual mining. Correct Answer: True Your Answer: True Multiple Choice Single Answer Question: If many indexes are needed, then on which table which option is more preferable? Correct Answer: Splitting of tables Your Answer: Collecting of tables Select The Blank Question: Indexed ________ engines search index,web pages and build huge keyword based indices which help to search sets of web pages containing certain keywords Correct Answer: Web Search Your Answer: Web Search Multiple Choice Multiple Answer Question: Distinguishing characteristics of data warehouse architecture are :- Correct Answer: Different Objective Scope , Data Content , Flexible and Dynamic Your Answer: Different Objective Scope , Data Content , Flexible and Dynamic Multiple Choice Single Answer Question: Which type of analysis of DNA facilitates discovery of group of genes and study of interaction and relationship between them? Correct Answer: Association analysis Your Answer: Association analysis True/False Question: Noise in data means error or variance in measured variable. Correct Answer: True Your Answer: True Select The Blank Question: ________ is the user who has all access privileges like system, database administrator, for table and views. Correct Answer: Security administrator Your Answer: Security administrator Multiple Choice Multiple Answer Question: The main categories of Metadata in warehouse are :- Correct Answer: Operational , Extraction and transformation Metadata , End user Metadata Your Answer: Operational , Extraction and transformation Metadata , End user Metadata Multiple Choice Single Answer Question: Simple matching approach is used for computing disimilarity between two objects for :-

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Correct Answer: Nominal variable Your Answer: Nominal variable True/False Question: One of the most important search problem in genetic analysis is similarity search and comparison among DNA sequence. Correct Answer: True Your Answer: True True/False Question: Data cube stores multidimensional aggregate information. Correct Answer: True Your Answer: True Multiple Choice Single Answer Question: Large number of indexes affects the loading process because :- Correct Answer: Indexes are created for new records Your Answer: Searching record becomes difficult Select The Blank Question: Most of the warehouses employ ________ database Management System. Correct Answer: Relational Your Answer: Relational Multiple Choice Single Answer Question: In intermediate data extraction data capture through transaction log uses transaction from :- Correct Answer: Recovery from failure Your Answer: Recovery from failure Multiple Choice Single Answer Question: Redundancies can be deleted by :- Correct Answer: Co-relational analysis Your Answer: Co-relational analysis True/False Question: Descriptive mining takes perform ingerence on current data which predictive mining characterize the general properties of data in database Correct Answer: False Your Answer: True Select The Blank Question: When data block contains excessive amount of free space, performance ________ Correct Answer: Degenerates Your Answer: Degenerates Multiple Choice Multiple Answer Question: The smoothing techniques are :- Correct Answer: Binning , Clustering , Regression Your Answer: Binning , Clustering , Regression True/False Question: A process of grouping a set of physical or abstract objects into classes of similar objects is called clusiering Correct Answer: True Your Answer: True

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Multiple Choice Single Answer Question: For Banking and financial data which type of analysis is used? Correct Answer: Multidimensional Your Answer: Relational Multiple Choice Multiple Answer Question: The dimensions of spatial data cube are :- Correct Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial Your Answer: Non- spatial dimension , Spatial to non spatial , Spatial to spatial Multiple Choice Single Answer Question: Which of the following technique involves placing and managing related units of data in same physical block of storage Correct Answer: Clustering Your Answer: Clustering Multiple Choice Multiple Answer Question: Data processing techniques are :- Correct Answer: Cleansing , Integration , Transformation Your Answer: Cleansing , Integration , Transformation Match The Following Question Correct Answer Your AnswerClustering Data tuples as objects Great accuracy Dimension reduction Removal of irrelevant data Removal of irrelevant data Data compression More computations Encoding mechanism Wrapper approach Great accuracy Data reduction Select The Blank Question: ________ can store aggregate and detail data at varying levels of resolution or abstraction. Correct Answer: Index tree Your Answer: Index tree Multiple Choice Multiple Answer Question: Following are the issues to consider during data integration :- Correct Answer: Schema integration , Redundancy , Detection and resolution of data values Your Answer: Schema integration , Redundancy , Detection and resolution of data values

LIST OF ATTEMPTED QUESTIONS AND ANSWERS Multiple Choice Single Answer Question: Histograms, the methods to store reduced representation of data uses :- Correct Answer: Binning Your Answer: Aggregation Multiple Choice Single Answer Question: Which of the following is based on set of density distribution function clustering? Correct Answer: DBSCAN Your Answer: DBSCAN Multiple Choice Multiple Answer Question: Source Data Component may be grouped into following categories :- Correct Answer: Production Data , Internal External Data

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Your Answer: Production Data , Internal External Data Select The Blank Question: ________ does not handle categorical attributes. Correct Answer: CURE Your Answer: CURE Select The Blank Question: Semantic integration of ________ genome database is the important task of DNA analysis. Correct Answer: Heterogeneous and distributed Your Answer: Heterogeneous and distributed True/False Question: Data staging and data storage may start out on same computing platform. Correct Answer: True Your Answer: True True/False Question: Data in data warehouse cuts across application. Correct Answer: True Your Answer: False True/False Question: Loan payment prediction and customer credit analysis are critical to business of bank. Correct Answer: True Your Answer: True Multiple Choice Multiple Answer Question: Data integration means :- Correct Answer: Integrating database , Integrating cubes , Integrating files Your Answer: Integrating cubes , Integrating files , Integrating attributes Multiple Choice Multiple Answer Question: Data mining is applicable to :- Correct Answer: Relational Database , Data Warehouse , Transaction Database Your Answer: Relational Database , Data Warehouse , Transaction Database Multiple Choice Multiple Answer Question: The information delivery methods from data warehouse are :- Correct Answer: Complex queries , MD Analysis , Statistical Analysis Your Answer: Complex queries , MD Analysis , Statistical Analysis Multiple Choice Multiple Answer Question: SMP provides the features like :- Correct Answer: Controllers which are accessible to all processors , Each processor has full access to the shared memory though common bus , Each node has access to common set of disks Your Answer: Controllers which are accessible to all processors , Each processor has full access to the shared memory though common bus , Each node has access to common set of disks Multiple Choice Multiple Answer Question: Splitting of query by DBMS in intra query parallelization is for :- Correct Answer: Index read , Data read , Data joint Your Answer: Index read , Data read , Data joint

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Multiple Choice Single Answer Question: For Incremental data loads the sequence is :- Correct Answer: Triggering ->Filtering ->data extraction -> Transformation ->Integration ->cleansing Your Answer: Triggering ->data extraction ->Filtering -> Transformation ->Integration ->cleansing Multiple Choice Multiple Answer Question: The platform of Data warehouse consists of :- Correct Answer: Basic hardware components , Operating System , Network and Network software Your Answer: Operating System , Network and Network software , Utility software Multiple Choice Multiple Answer Question: Following factors play important role in financial analysis :- Correct Answer: Data warehouse , Data cubes , Outliner analysis Your Answer: Data warehouse , Data cubes , Outliner analysis Multiple Choice Single Answer Question: Which of the following data capture method of data abstraction is time consuming? Correct Answer: Capture by comparing files Your Answer: Capture by comparing files Multiple Choice Single Answer Question: Capture at data source and that's why this method is quite reliable :- Correct Answer: Capture by database Triggers Your Answer: Capture by database Triggers True/False Question: To remove noise from data is called as Smoothing. Correct Answer: True Your Answer: True True/False Question: NUMA provides better scalability than SMP. Correct Answer: True Your Answer: True Multiple Choice Multiple Answer Question: The Architecture defines :- Correct Answer: Measurements , Standard , General Design Your Answer: Measurements , Standard , General Design Multiple Choice Multiple Answer Question: Data reduction includes :- Correct Answer: Single value decomposition , Wavelets , Regression Your Answer: Single value decomposition , Wavelets , Regression Multiple Choice Single Answer Question: Which of the following component includes database Management System? Correct Answer: Data Storage Your Answer: Management and control Match The Following Question Correct Answer Your Answer

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Data loading tool Primary key generation Primary key generation Data modeling tool Reverse Engineering Reverse Engineering capabilities

capabilitiesData Extraction tool Bulk extraction for full Bulk extraction for full refresh refreshData transformation Default values Default values tool Multiple Choice Single Answer Question: Which type of following clustering computes augumented cluster ordering? Correct Answer: OPTICS Your Answer: OPTICS Multiple Choice Single Answer Question: Which from the following are special programs that are stored on database and fired when certain predefined action occurs? Correct Answer: Triggers Your Answer: Triggers Multiple Choice Single Answer Question: Attribute construction is the part of :- Correct Answer: Transformation Your Answer: Transformation Multiple Choice Single Answer Question: The stored values of an attribute represents the value of attribute at this moment of time is :- Correct Answer: Current value Your Answer: Current value Multiple Choice Single Answer Question: The option "capture in source application technique of data extraction degrades performance of source application because :- Correct Answer: Additional processing needs Your Answer: Additional processing needs Select The Blank Question: ________ technique is the statistical technique for analyzing data. Correct Answer: Time series Your Answer: Analysis of variance Select The Blank Question: ________ function of data staging component involves many forms of combining pieces of data from different sources. Correct Answer: Data Transformation Your Answer: Data Transformation True/False Question: To detect money laundering and other financial crimes, it is important to integrate information for multiple databases. Correct Answer: True Your Answer: True Multiple Choice Single Answer Question: Which of the following option of data extraction is known as application assisted data capture?

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Correct Answer: Capture in source application Your Answer: Capture in source application Multiple Choice Single Answer Question: Dimensionality reduction reduces the data set size by removing :- Correct Answer: Irrelevant attributes Your Answer: Irrelevant attributes Multiple Choice Single Answer Question: Maintenance of cache consistency is the limitation of :- Correct Answer: MPP Your Answer: NUMA Select The Blank Question: ________ is the method used to predict the value of response variable from one to more variables. Correct Answer: Regression Your Answer: Analysis of variance True/False Question: Metadata is building block of data warehouse. Correct Answer: True Your Answer: True Select The Blank Question: ________ is the type of pilot for early delivery with broader scope and may be integrated. Correct Answer: Broad business pilot Your Answer: Broad business pilot Select The Blank Question: In data ________, data encoding or transformations are applied to obtain reduced or compressed representation. Correct Answer: Compression Your Answer: Compression Multiple Choice Multiple Answer Question: Metadata in a data warehouse falls into following categories :- Correct Answer: Operational Metadata , Extraction and Transformation metadata , End-user Metadata Your Answer: Operational Metadata , Extraction and Transformation metadata , End-user Metadata True/False Question: Data integration merges data from multiple sources into coherent sources. Correct Answer: True Your Answer: True Match The Following Question Correct Answer Your AnswerAdministration Providing support for all DBA functions Support for System administration Extensibility Hybrid Extension to OLAP Providing support for all DBA database

functions Portability Across platform APIs For tools from loading vendors Query tool APIs For tools from loading Hybrid Extension to OLTP database

vendors

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Multiple Choice Multiple Answer Question: Data transformation includes :- Correct Answer: Smoothing , Aggregation , Generalization Your Answer: Smoothing , Aggregation , Generalization Multiple Choice Multiple Answer Question: Knowledge discovery process includes :- Correct Answer: Data Cleaning , Data Intergration , Data Selectin Your Answer: Data Cleaning , Data Intergration , Data Selectin Multiple Choice Single Answer Question: Queries run faster to find exact match using which type of indexing? Correct Answer: Clustered index Your Answer: Clustered index True/False Question: Intelligent miner is an IBM data mining product. Correct Answer: True Your Answer: True


Multiple Choice Multiple AnswerQuestion: Building blocks of Data Warehouse are :-Correct Answer: Management and Control , Source Data , Data Staging Your Answer: Management and Control , Source Data , Data Staging

Multiple Choice Single AnswerQuestion: Substantial portion of available information is stored in :-Correct Answer: Text dataYour Answer: Object oriented database

True/FalseQuestion: The data Warehouse is query-centric.Correct Answer: TrueYour Answer: True

True/FalseQuestion: Data mining is a piece of integrated solutions.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Which of the following data capture method of data abstraction is time consuming?Correct Answer: Capture by comparing filesYour Answer: Capture by comparing files

Select The BlankQuestion: ________ does not handle categorical attributes.Correct Answer: CUREYour Answer: CURE

True/FalseQuestion: In the data acquisition area, the data flow begins at the data sources and pauses at staging area.

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Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Association rules mining is based on :-Correct Answer: Clustering and Employing rules for classificationYour Answer: Clustering and Employing rules for classification

True/FalseQuestion: In physical design of warehouse, developing standard ensures consistency across the various areas.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Bayes Theorem is :-Correct Answer: P(H|X)=P(X|H)(P)/P(X)Your Answer: P(H|X)=P(X|H)(P)/P(X)

Select The BlankQuestion: Indexed ________ engines search index,web pages and build huge keyword based indices which help to search sets of web pages containing certain keywordsCorrect Answer: Web SearchYour Answer: Web Search

Multiple Choice Single AnswerQuestion: Data matrix is :-Correct Answer: Object by variable structureYour Answer: Object by variable structure

Multiple Choice Single AnswerQuestion: Real world databases are highly susceptible to noisy, missing and inconsistent data due to :-Correct Answer: Huge size of dataYour Answer: Huge size of data

Multiple Choice Single AnswerQuestion: Simple matching approach is used for computing disimilarity between two objects for :-Correct Answer: Nominal variableYour Answer: Nominal variable

Multiple Choice Multiple AnswerQuestion: Clustering Techniques organised into following categories :-Correct Answer: Partitioning , Density Based , Grid Based Your Answer: Partitioning , Density Based , Grid Based

Select The BlankQuestion: Most of the warehouses employ ________ database Management System.Correct Answer: RelationalYour Answer: Relational

Multiple Choice Single AnswerQuestion: Data cleansing effort can begin with :-Correct Answer: High priority dataYour Answer: High priority data

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True/FalseQuestion: Sequential pattern analysis and similarity search techniques have been developed in data mining.Correct Answer: TrueYour Answer: True

Match The FollowingQuestion Correct Answer Your AnswerLoad Utility High performance data High performance data loading,

loading, recovery recoveryQuery Governer Abort runaway query Abort runaway queryQuery Optimizer Parsing, optimizing query Parsing, optimizing queryQuery Management Balancing extraction of query Balancing extraction of query

Multiple Choice Multiple AnswerQuestion: Distinguishing characteristics of data warehouse architecture are :-Correct Answer: Different Objective Scope , Data Content, Flexible and Dynamic Your Answer: Different Objective Scope , Data Content , Flexible and Dynamic

Multiple Choice Single AnswerQuestion: Which type of integrity constraint forces the establishment of parent -child relationship?Correct Answer: Referential integrityYour Answer: Referential integrity

Select The BlankQuestion: An information measures called ________ can be used to recursively partition the values of numeric attribute.Correct Answer: EntropyYour Answer: Entropy

True/FalseQuestion: Metadata is building block of data warehouse.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: In which of the following type of mining frequently occuring patterns related to time and sequence are mined?Correct Answer: Sequential pattern miningYour Answer: Time series data mining

Select The BlankQuestion: ________ is the time consuming and less feasible approach for filling missing values.Correct Answer: Filling missing values manuallyYour Answer: Filling missing values manually

Multiple Choice Multiple AnswerQuestion: Classification and Prediction have following applications :-Correct Answer: Credit approval , Medical Diagnosis, Performance Prediction Your Answer: Credit approval , Medical Diagnosis , Performance Prediction

Multiple Choice Multiple AnswerQuestion: Data processing techniques are :-Correct Answer: Cleansing , Integration , Transformation Your Answer: Cleansing , Integration , Transformation

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True/FalseQuestion: Data in warehouse is primarily for query.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Data reduction obtains a reduced representation of data set that is :-Correct Answer: Much smallerYour Answer: Much smaller

Multiple Choice Single AnswerQuestion: Which of the following type executes query operations in pipeline manner?Correct Answer: Vertical parallelismYour Answer: Vertical parallelism

Multiple Choice Single AnswerQuestion: User gets an enterprise wide view of information from the data warehouse due to :-Correct Answer: Improved productivityYour Answer: Newer opportunity

Select The BlankQuestion: ________ databases are one of the most poplularly available and rich information repositories.Correct Answer: RelationalYour Answer: Relational

Multiple Choice Single AnswerQuestion: Which database type stores a large amount of space-related data?Correct Answer: SpatialYour Answer: Spatial

Multiple Choice Multiple AnswerQuestion: DNA sequences are comprised of :-Correct Answer: Adenine , Gaunine , Thymine Your Answer: Adenine , Gaunine , Thymine

Multiple Choice Multiple AnswerQuestion: The strategies for data reduction are :-Correct Answer: Data aggregation , Dimension reduction , Numerocity reduction Your Answer: Data aggregation , Dimension reduction , Numerocity reduction

Select The BlankQuestion: ________ is an effective way to discover knowledge from huge amount of data.Correct Answer: Visual data miningYour Answer: Web mining

Select The BlankQuestion: ________ is the process of grouping data into classes.Correct Answer: ClusteringYour Answer: Classification


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Question: Data mining Functionalities are :-Correct Answer: Charactrization and Discrimination, Association Analysis, Cluster Analysis Your Answer: Charactrization and Discrimination , Association Analysis , Cluster Analysis

Select The BlankQuestion: ________ is a summarization of general characteristics or features of a target class of data.Correct Answer: Data CharacterizationYour Answer: Data Characterization

Multiple Choice Single AnswerQuestion: Classification rules are extracted fromCorrect Answer: Decision TreeYour Answer: Decision Tree

Multiple Choice Single AnswerQuestion: Which of the follwing inheritance is supported by Object oriented databases?Correct Answer: Multiple InheritanceYour Answer: Single Inheritance

Select The BlankQuestion: For decision making process ________ process which considers finding only interesting patterns is used.Correct Answer: Microeconomic viewYour Answer: Pattern discovery

Match The FollowingQuestion Correct Answer Your AnswerInitial load of data as-is' data capture as-is' data capturewarehouseStatic data Capture of data in given Capture of data in given point of point of

time timeData revision Incremental data capture Incremental data captureIncremental data Differed data capture Differed data capture

True/FalseQuestion: Business metadata is like a roadmap or easy to use information directory showing contents and how to get there.Correct Answer: TrueYour Answer: True

True/FalseQuestion: Data in data warehouse cuts across application.Correct Answer: TrueYour Answer: True

True/FalseQuestion: Remote deployment of desktop tools is usually faster.Correct Answer: TrueYour Answer: False

Multiple Choice Single AnswerQuestion: Effect of one attibute value on a given class is independent of values of other attibute is calledCorrect Answer: Value independenceYour Answer: Value independence

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Multiple Choice Multiple AnswerQuestion: Building blocks of Data Warehouse are :-Correct Answer: Management and Control , Source Data , Data StagingYour Answer: Management and Control , Source Data , Data Staging

Multiple Choice Single AnswerQuestion: Substantial portion of available information is stored in :-Correct Answer: Text dataYour Answer: Object oriented database

True/FalseQuestion: The data Warehouse is query-centric.Correct Answer: TrueYour Answer: True

True/FalseQuestion: Data mining is a piece of integrated solutions.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Which of the following data capture method of data abstraction is time consuming?Correct Answer: Capture by comparing filesYour Answer: Capture by comparing files

Select The BlankQuestion: ________ does not handle categorical attributes.Correct Answer: CUREYour Answer: CURE

True/FalseQuestion: In the data acquisition area, the data flow begins at the data sources and pauses at staging area.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Association rules mining is based on :-Correct Answer: Clustering and Employing rules for classificationYour Answer: Clustering and Employing rules for classification

True/FalseQuestion: In physical design of warehouse, developing standard ensures consistency across the various areas.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Bayes Theorem is :-Correct Answer: P(H|X)=P(X|H)(P)/P(X)Your Answer: P(H|X)=P(X|H)(P)/P(X)

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Select The BlankQuestion: Indexed ________ engines search index,web pages and build huge keyword based indices which help to search sets of web pages containing certain keywordsCorrect Answer: Web SearchYour Answer: Web Search

Multiple Choice Single AnswerQuestion: Data matrix is :-Correct Answer: Object by variable structureYour Answer: Object by variable structure

Multiple Choice Single AnswerQuestion: Real world databases are highly susceptible to noisy, missing and inconsistent data due to :-Correct Answer: Huge size of dataYour Answer: Huge size of data

Multiple Choice Single AnswerQuestion: Simple matching approach is used for computing disimilarity between two objects for :-Correct Answer: Nominal variableYour Answer: Nominal variable

Multiple Choice Multiple AnswerQuestion: Clustering Techniques organised into following categories :-Correct Answer: Partitioning , Density Based , Grid BasedYour Answer: Partitioning , Density Based , Grid Based

Select The BlankQuestion: Most of the warehouses employ ________ database Management System.Correct Answer: RelationalYour Answer: Relational

Multiple Choice Single AnswerQuestion: Data cleansing effort can begin with :-Correct Answer: High priority dataYour Answer: High priority data

True/FalseQuestion: Sequential pattern analysis and similarity searchtechniques have been developed in data mining.Correct Answer: TrueYour Answer: True

Match The FollowingQuestion Correct Answer Your AnswerLoad Utility High performance data High performance

loading, recovery data loading, recoveryQuery Governer Abort runaway query Abort runaway queryQuery Optimizer Parsing, optimizing query Parsing, optimizing queryQuery Management Balancing extraction of query Balancing extraction of query

Multiple Choice Multiple AnswerQuestion: Distinguishing characteristics of data warehouse architecture are :-Correct Answer: Different Objective Scope, Data Content, Flexible and DynamicYour Answer: Different Objective Scope, Data Content, Flexible and Dynamic

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Multiple Choice Single AnswerQuestion: Which type of integrity constraint forces the establishment of parent -child relationship?Correct Answer: Referential integrityYour Answer: Referential integrity

Select The BlankQuestion: An information measures called ________ can be used to recursively partition the values of numeric attribute.Correct Answer: EntropyYour Answer: Entropy

True/FalseQuestion: Metadata is building block of data warehouse.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: In which of the following type of mining frequently occuring patterns related to time and sequence are mined?Correct Answer: Sequential pattern miningYour Answer: Time series data mining

Select The BlankQuestion: ________ is the time consuming and less feasible approach for filling missing values.Correct Answer: Filling missing values manuallyYour Answer: Filling missing values manually

Multiple Choice Multiple AnswerQuestion: Classification and Prediction have following applications :-Correct Answer: Credit approval , Medical Diagnosis, Performance PredictionYour Answer: Credit approval , Medical Diagnosis , Performance Prediction

Multiple Choice Multiple AnswerQuestion: Data processing techniques are :-Correct Answer: Cleansing , Integration , TransformationYour Answer: Cleansing , Integration , Transformation

True/FalseQuestion: Data in warehouse is primarily for query.Correct Answer: TrueYour Answer: True

Multiple Choice Single AnswerQuestion: Data reduction obtains a reduced representation of data set that is :-Correct Answer: Much smallerYour Answer: Much smaller

Multiple Choice Single AnswerQuestion: Which of the following type executes query operations in pipeline manner?Correct Answer: Vertical parallelismYour Answer: Vertical parallelism

Multiple Choice Single AnswerQuestion: User gets an enterprise wide view of information from the data warehouse due to :-

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Correct Answer: Improved productivityYour Answer: Newer opportunity

Select The BlankQuestion: ________ databases are one of the most poplularly available and rich information repositories.Correct Answer: RelationalYour Answer: Relational

Multiple Choice Single AnswerQuestion: Which database type stores a large amount of space-related data?Correct Answer: SpatialYour Answer: Spatial

Multiple Choice Multiple AnswerQuestion: DNA sequences are comprised of :-Correct Answer: Adenine , Gaunine , ThymineYour Answer: Adenine , Gaunine , Thymine

Multiple Choice Multiple AnswerQuestion: The strategies for data reduction are :-Correct Answer: Data aggregation , Dimension reduction ,Numerocity reductionYour Answer: Data aggregation , Dimension reduction , Numerocity reduction

Select The BlankQuestion: ________ is an effective way to discover knowledge from huge amount of data.Correct Answer: Visual data miningYour Answer: Web mining

Select The BlankQuestion: ________ is the process of grouping data into classes.Correct Answer: ClusteringYour Answer: Classification

Multiple Choice Multiple AnswerQuestion: Data mining Functionalities are :-Correct Answer: Charactrization and Discrimination, Association Analysis , Cluster AnalysisYour Answer: Charactrization and Discrimination, Association Analysis , Cluster Analysis

Select The BlankQuestion: ________ is a summarization of general characteristics or features of a target class of data.Correct Answer: Data CharacterizationYour Answer: Data Characterization

Multiple Choice Single AnswerQuestion: Classification rules are extracted fromCorrect Answer: Decision TreeYour Answer: Decision Tree

Multiple Choice Single AnswerQuestion: Which of the follwing inheritance is supported by Object oriented databases?Correct Answer: Multiple InheritanceYour Answer: Single Inheritance

Select The Blank

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Question: For decision making process ________ process which considers finding only interesting patterns is used.Correct Answer: Microeconomic viewYour Answer: Pattern discovery

Match The FollowingQuestion Correct Answer Your AnswerInitial load of data warehouse as-is' data capture as-is' data captureStatic data Capture of data in given Capture of data in given point

point of time timeData revision Incremental data capture Incremental data captureIncremental data capture Differed data capture Differed data capture

True/FalseQuestion: Business metadata is like a roadmap or easy to use information directory showing contents and how to get there.Correct Answer: TrueYour Answer: True

True/FalseQuestion: Data in data warehouse cuts across application.Correct Answer: TrueYour Answer: True

True/FalseQuestion: Remote deployment of desktop tools is usually faster.Correct Answer: TrueYour Answer: False

Multiple Choice Single AnswerQuestion: Effect of one attibute value on a given class is independent of values of other attibute is calledCorrect Answer: Value independenceYour Answer: Value independence

Unattended QuestionsMatch the Following. Data Quality tool

2 1. Assist data ware house administration

2. OLAP tools 6

2. Locating data errors

3. Alert system tool 5

3. Transparent access to source system

4. Middleware & connectivity tool 3

4. Track on number of queries

5. Users attention on exceptions

6. Channel queries

Select The Blank

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clustering method follows statistical and neural network approach.

True/FalseData cleansing means removing noisy and inconsistent data. TRUE

Match The Following1. Non volatile data 2 1. External data

2. Data granularity 4 2. Query and analysis

3. Data from external source 1 3. Production data

4. Disparate data 3 4. Level of detail

5. Archive data

6. Internal data

Match The Following1. Data storage 1 1. Data management

2. Data staging 2 2. Workbench for data

3. Data Mining 5 3. Details of summary

4. Metadata 6 4. Private spreadsheet data

5. Knowledge discovery

6. Roadmap for user

True/FalseThe Structure that brings all the components together is known as Architecture. TRUE/FALSE

Match The Following 1. Data modeling tool 1 1. Reverse Engineering capabilities

2. Data Extraction tool 4 2. Default values

3. Data transformation tool 2 3. Formulating and running queries

4. Data loading tool 5 4. Bulk extraction for full refresh

5. Primary key generation

6. Replication

Match The Following 1. Static data

1. Immediate data capture

2. Data revision

2. Capture of data in given point of time

3. Incremental data capture

3. Incremental data capture

4. Initial load of data warehouse

4. Value of attribute at specific time

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5. "as-is" data capture

6. Differed data capture

Match The Following1. Initial Load

4 1. New record supercedes

2. Incremental Load 6

2. Offline data warehouse

3. Load Image 5

3. Applying data

4. Constructive merge 1

4. Populating data warehouse table first time

5. To correspond to target files

6. Applying ongoing changes

Match The Following1. Identify source application 2 1. Method of extraction

2. Denote time window 5 2. Source identification

3. Handling unextractable input records 6 3. Extraction

4. Extraction is manual/Tool based 1 4. Job sequencing

5. Time window

6. Exception handling

Multiple Choice Multiple Answer7. The main categories of Metadata in warehouse are :-a)

b)

c)d)

Operational

Execution and Transformation Metadata

Extraction and transformation Metadata

End user Metadata

Multiple Choice Multiple Answer20.

The ways of Intra query parallelization are :-

a)

b)

c)

d)

Horizontal parallelization

Vertical Parallelization

Hybrid parallelization

Homogenous parallelization


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30.Sequence of physical design of data warehouse is :- a)

b)

c)

d)

Develop standards--Create aggregate plans--determine data partitioning schemem--extablish clustering option--prepare indexing strategy--complete physical model

Develop standards--determine data partitioning scheme--Create aggregate plans--establish clustering option--prepare indexing strategy--complete physical model

Develop standards--prepare indexing strategy--Create aggregate plans--determine data partitioning scheme--establish clustering option---complete physical model

Develop standards--Create aggregate plans--establish clustering option--determine data partitioning scheme--prepare indexing strategy--complete physical model

Multiple Choice Single Answer44.Data migration affects performance requiring multiple blocks to be read which can be

adjusted by :-a)

b)

c)

d)

Block percent free

Block percent used

Block percent occupied

Block percent vacant

True/False48. In Linear regression data are modeled to fit a straight line.

True

False

Select The Blank16. The technique of_____________enables concurrent input/output operations and improves file's access performance substantially.

a) Data migrationb) File striping c) Block utilizationd) Dynamic extension

Match the Following 1. Data visualization

1. Visual display

2. Data mining result visualization

2. Presentation of knowledge

3. Data mining process visualization

3. Data mining in visual format

4. Interactive visual data mining

4. Visualization tool

5. Graphical display

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6. Audio signal

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