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Question 1 of 205.0/ 5.0 Points
What is data integrity?
A.It is the data contained in database that is shared.
B.It is the data contained in database that is secured.
C.It is the data contained in database that is non redundant.
D.It is the data contained in database that is accurate and consistent.
Question 2 of 205.0/ 5.0 Points
A set of possible data values is called:
A.Attribute.
B.Degree.
C.Domain.
D.Tuple.
Question 3 of 205.0/ 5.0 Points
The entity-relationship diagrams A and B shows the relationships between three entities in a school:teacher, class, and classroom. Which of the following is an appropriate interpretation concerning thediagrams? ere, ! " " ! shows a one-to-one relationship while ! " # ! shows a one-to-many relationship.
A.In A, one class is alwas assigned to the same classroom. In B, one
class ma be assigned to one or more classrooms.
B.In A, one class is alwas super!ised b one teacher. In B, one class ma
be super!ised b one or more teachers.
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C.In A, when a teacher or a classroom is decided, a single class will be
decided. In B, i" a teacher and a classroom are decided, a single class
will be decided.
D.In A, a teacher is responsible "or one class onl. In B, a teacher ma
be responsible "or one or more classes.
Question 4 of 205.0/ 5.0 Points
An advantage of the database management approach is:
A.Data is dependent on programs.
B.Data redundanc increases.
C.Data is integrated and can be accessed b multiple programs.
D. #one o" the abo!e.
Question 5 of 205.0/ 5.0 Points
$t is better to use files than a %B&' when there are:
A.$tringent real%time re&uirements.
B.'ultiple users wish to access the data.
C.Comple( relationships among data.
D. All o" the abo!e.
Question 6 of 205.0/ 5.0 Points
()** is:
A.The same as 0 "or integer
B.The same as blan) "or character
C.The same as 0 "or integer and blan) "or character
D.#ot a !alue
Question 7 of 200.0/ 5.0 Points
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$f both the functional dependencies : + and + hold for two attributes + and then the relationshipbetween + and is
A.*+*
B.*+'
C.'+#
D.'+*
Question 8 of 205.0/ 5.0 Points
Which of the following is the appropriate characteristic of a database?
A.Because a database is created to suit the "ormat o" the data, it cannot respond "le(ibl to
data "ormat changes.
B.It is di""icult to share data between operations due to an e(clusi!e control "unction.
C.The procedure "or ma)ing bac)ups is complicated.
D.It can be accessed b multiple users at the same time due to an e(clusi!e control
"unction.
Question 9 of 20 5.0/ 5.0 Points$n case of entity integrity, the primary ey may be:
A.#ot #ull
B.Both #ull not #ull.
C.#ull
Question 10 of 205.0/ 5.0 Points
Which of the following are the properties of entities?
A.-roups
B.$witchboards
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C.Attributes
D.Table
Question 11 of 20 0.0/ 5.0 Pointsou are tased with creating a database to manage where computers are installed at a company that hasoffices in several buildings. ou create an /asset0 table, a /room0 table, and a /building0 table, and lineach of them together. When new data is entered, the data in the referenced table must already e1ist.Which of the following is the appropriate order of in-put? ere, the underlined items in each table areeither primary or foreign eys.
A.Building table 1oom table Asset table
B.1oom table Building table Asset table
C.Asset table Building table 1oom table
D.1oom table Asset table Building table
Question 12 of 200.0/ 5.0 Points
ou are building a new database for a company with "2 departments. 3ach department contains multipleemployees. $n addition, each employee might wor for several departments. ow should you logicallymodel the relationship between the department entity and the employee entity?
User(User_ID, User_Name, Address)
Reservation(User_ID, Book_Title_ID, Reservation_Date)
Book_Title(Book_Title_ID, Category_Code, Book_Title, Author)
to!ked_Book(to!ked_Book_ID, Book_Title_ID, "ur!hase_Date, Cumulative_#ending_Count)
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A.Create a new entr, create a one%to%man relationship "rom the new entr to the
emploee entr, and then create a one%to%man relationship "rom the entr to the department
entr.
B.Create a mandator one%to%man relationship between department and emploee.
C.Create an optional one%to%man relationship between department and emploee.
D.Create a new entr, create a one%to%man relationship "rom the emploee to the new
entr, and create a one%to%man relationship "rom the department entr to the new entr.
Question 13 of 205.0/ 5.0 Points
The file organi4ation that provides very fast access to any arbitrary record of a file is:
A.2rdered "ile.
B. B%tree.
C.3nordered "ile.
D.4ashed "ile.
Question 14 of 205.0/ 5.0 Points
A relation is considered a:
A.three%dimensional table.
B.two%dimensional table.
C.Column.
D. one%dimensional table.
Question 15 of 205.0/ 5.0 Points
$n the 35% diagram, the one-to-many relationship, !a company has multiple employees,! is e1pressed asfollows:
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Which of the following statements correctly e1plains the above diagram?
A.There are multiple companies, and each compan has a shareholder.
B.There are multiple companies, and each compan has multiple shareholders.
C.2ne compan has one shareholder.
D.2ne compan has multiple shareholders.
Question 16 of 200.0/ 5.0 Points
$f the condition given below applies, which of the following is appropriate as an 3-5 diagram showing thedepartments employees belong to?
A.
B.
C.
D.
Question 17 of 200.0/ 5.0 Points
The values of the attribute describes a particular6666666666666
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A.ntit set
B.ntit instance
C.2rgani6ation
D.7ile
Question 18 of 205.0/ 5.0 Points
$n the relational modes, cardinality is termed as:
A.#umber o" tables.
B. #umber o" tuples.
C.#umber o" attributes.
D.#umber o" constraints.
Question 19 of 205.0/ 5.0 Points
What is a relationship called when it is maintained between two entities?
A.Ternar
B.Binar
C.8uaternar
D.3nar
Question 20 of 205.0/ 5.0 Points
Which of the following appropriately describes a domain 7defined area8, a term used for relationaldatabases?
A. It is a speci"ication "or coping the real world to a database.
B.It is a relationship deri!ed b appling the relational operations to the basic relationship.
C.It is the general term "or data insertion, updating, deletion, and search in a database.
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D.It is a set o" !alues that attributes can hold.
Question 1 of 200.0/ 5.0 Points
The database environment has all of the following components e1cept:
A.3sers.
B.Database.
C.$eparate "iles.
D. Database administrator.
Question 2 of 205.0/ 5.0 Points
A relation is considered a:
A.three%dimensional table.
B.two%dimensional table.
C.Column.
D. one%dimensional table.
Question 3 of 200.0/ 5.0 Points
Which of the following appropriately describes a domain 7defined area8, a term used for relationaldatabases?
A.It is a relationship deri!ed b appling the relational operations to the basic
relationship.
B. It is a speci"ication "or coping the real world to a database.
C.It is a set o" !alues that attributes can hold.
D.It is the general term "or data insertion, updating, deletion, and search in a database.
Question 4 of 205.0/ 5.0 Points
%B&' helps achieve:
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A.Data independence.
B.Centrali6ed control o" data.
C.#either 9A: nor 9B:.
D.Both 9A: and 9B:.
Question 5 of 205.0/ 5.0 Points
An entity set that does not have sufficient attributes to form a primary ey is a:
A.;ea) entit set.
B.Primar entit set.
C.$trong entit set.
D.$imple entit set.
Question 6 of 200.0/ 5.0 Points
The method in which records are physically stored in a specified order according to a ey field in eachrecord
A.4ash.
B.Direct.
C.$e&uential.
D.All o" the abo!e.
Question 7 of 205.0/ 5.0 Points
A set of possible data values is called:
A.Degree.
B.Tuple.
C.Domain.
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D.Attribute.
Question 8 of 205.0/ 5.0 Points
Which of the following appropriately describes a schema in a relational database management system?
A.It is the general term "or database operations such as data insertion, updating, deletion,
search, etc.
B.It is the general term "or !arious conditions and constraints that are used to maintain the
database in absolutel per"ect condition.
C.It is a set o" data de"initions such as the data properties, "ormat, relationship with other
data, etc.
D.It is not an actual table but a !irtual table "rom the perspecti!e o" the user.
Question 9 of 205.0/ 5.0 Points
The entity-relationship diagrams A and B shows the relationships between three entities in a school:teacher, class, and classroom. Which of the following is an appropriate interpretation concerning thediagrams? ere, ! " " ! shows a one-to-one relationship while ! " # ! shows a one-to-many relationship.
A.In A, when a teacher or a classroom is decided, a single class will be
decided. In B, i" a teacher and a classroom are decided, a single class
will be decided.
B.In A, one class is alwas assigned to the same classroom. In B, one
class ma be assigned to one or more classrooms. C.In A, one class is alwas super!ised b one teacher. In B, one class ma
be super!ised b one or more teachers.
D.In A, a teacher is responsible "or one class onl. In B, a teacher ma
be responsible "or one or more classes.
Question 10 of 200.0/ 5.0 Points
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$n an 3-5 diagram double lines indicate
A.Total participation.
B.'ultiple participation.
C.Cardinalit #.
D.#one o" the abo!e.
Question 11 of 205.0/ 5.0 Points
$n a relation:
A.2rdering o" rows is immaterial.
B.#o two rows are identical.
C.9A: and 9B: both are true.
D.#one o" these.
Question 12 of 200.0/ 5.0 Points
Which of the following is not a restriction for a table to be a relation?
A.The cells o" the table must contain a single !alue.
B.#o two rows in a table ma be identical.
C.The columns must be ordered.
D.All o" the entries in an column must be o" the same )ind.
Question 13 of 200.0/ 5.0 Points
The conceptual model is:
A.Dependent on so"tware.
B.Dependent on hardware.
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C. Independent o" both hardware and so"tware.
D.Dependent on both hardware and so"tware.
Question 14 of 20 0.0/ 5.0 PointsThe values of the attribute describes a particular6666666666666
A.2rgani6ation
B.ntit set
C.7ile
D.ntit instance
Question 15 of 205.0/ 5.0 Points
The file organi4ation that provides very fast access to any arbitrary record of a file is:
A. B%tree.
B.4ashed "ile.
C.3nordered "ile.
D.2rdered "ile.
Question 16 of 205.0/ 5.0 Points
$n case of entity integrity, the primary ey may be:
A.Both #ull not #ull.
B.#ot #ull
C.#ull
Question 17 of 205.0/ 5.0 Points
The %B&' acts as an interface between what two components of an enterprise-class database system?
A. Database application and the database
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B.Database application and $8<
C. Data and the database
D.The user and the database application
Question 18 of 205.0/ 5.0 Points
The 5%B&' terminology for a row is:
A.Attribute.
B.1elation.
C.Tuple.
D.Degree.
Question 19 of 200.0/ 5.0 Points
A relational database developer refers to a record as:
A.A criteria.
B.A tuple.
C.An attribute.
D.A relation.
Question 20 of 200.0/ 5.0 Points
Which of the following is another name for wea entity?
A.Child
B.2wner
C.Dominant
D.All o" the abo!e
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HAUI_010_NSD_Quiz1_DB Designe
5eturn toAssessment *ist
Part * o" * % =0.0/ *00.0 Points
Question 1 of 200.0/ 5.0 Points
Conceptual design
A.Is a documentation techni&ue.
B.Is designing the relational model.
C. #eeds data !olume and processing "re&uencies to determine the si6e o" the database.
D.In!ol!es modelling independent o" the DB'$.
Question 2 of 200.0/ 5.0 Points
In an %1 diagram attributes are represented b+
A.1ectangle.
B.llipse.
C.$&uare.
D.Triangle.
Question 3 of 205.0/ 5.0 Points
A set o" possible data !alues is called+
A.Tuple.
B.Domain.
C.Attribute.
D.Degree.
https://gst.fsoft.com.vn/portal/tool/9354ff26-9491-4392-9e3a-1b7b3b65a788/jsf/select/selectIndexhttps://gst.fsoft.com.vn/portal/tool/9354ff26-9491-4392-9e3a-1b7b3b65a788/jsf/select/selectIndex
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Question 4 of 205.0/ 5.0 Points
The 1DB'$ terminolog "or a row is+
A.1elation.
B.Tuple.
C.Degree.
D.Attribute.
Question 5 of 205.0/ 5.0 Points
The DB'$ acts as an inter"ace between what two components o" an enterprise%class database
sstem>
A.Database application and $8<
B. Database application and the database
C. Data and the database
D.The user and the database application
Question 6 of 20 0.0/ 5.0 Points
?ou are building a new database "or a compan with *0 departments. ach department contains
multiple emploees. In addition, each emploee might wor) "or se!eral departments. 4ow
should ou logicall model the relationship between the department entit and the emploeeentit>
User(User_ID, User_Name, Address)
Reservation(User_ID, Book_Title_ID, Reservation_Date)
Book_Title(Book_Title_ID, Category_Code, Book_Title, Author)
to!ked_Book(to!ked_Book_ID, Book_Title_ID, "ur!hase_Date, Cumulative_#ending_Count)
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A.Create a new entr, create a one%to%man relationship "rom the new entr to the
emploee entr, and then create a one%to%man relationship "rom the entr to the department
entr.
B.Create an optional one%to%man relationship between department and emploee.
C.Create a new entr, create a one%to%man relationship "rom the emploee to the new
entr, and create a one%to%man relationship "rom the department entr to the new entr.
D.Create a mandator one%to%man relationship between department and emploee.
Question 7 of 205.0/ 5.0 Points
A DB'$ &uer language is designed to+
A.$upport end users who use nglish%li)e commands.
B.$upport in the de!elopment o" comple( applications so"tware.
C.$peci" the structure o" a database.
D. All o" the abo!e.
Question 8 of 205.0/ 5.0 Points
Consider the @oin o" a relation 1 with relation $. I" 1 has m tuples and $ has n tuples, then the
ma(imum si6e o" @oin is+
A.mn
B.mn
C.9mn:
D.9mn:/
Question 9 of 205.0/ 5.0 Points
;hich o" the "ollowing appropriatel describes a schema in a relational database managementsstem>
A.It is a set o" data de"initions such as the data properties, "ormat, relationship with other
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data, etc.
B.It is not an actual table but a !irtual table "rom the perspecti!e o" the user.
C.It is the general term "or !arious conditions and constraints that are used to maintain the
database in absolutel per"ect condition.
D.It is the general term "or database operations such as data insertion, updating, deletion,
search, etc.
Question 10 of 205.0/ 5.0 Points
The "ollowing data model has been created as a part o" a librar reser!ation sstem. ;hich is the
correct description "or it> In this &uestion, * means one%to%man cardinalit and the underlinedattributes in the table de"inition are primar )es
3ser93serID, 3ser#ame, Address: 1eser!ation93serID, Boo)TitleID, 1eser!ationDate:
Boo)Title9Boo)TitleID, CategorCode, Boo)Title, Author:
$toc)edBoo)9$toc)edBoo)ID, Boo)TitleID, PurchaseDate,Cumulati!e
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D.#one o" these.
Question 12 of 205.0/ 5.0 Points
;hich o" the "ollowing is e(pressed b an %1 diagram>
A.1elation between entities
B.1elation between process and relationship
C.1elation between processes
D.1elation between entit and process
Question 13 of 205.0/ 5.0 Points
;hich o" the "ollowing is described graphicall using an %1 diagram>
A.Data source and destination
B.4ierarchical data structure
C.Data "lows between processes
D.ntities and relationships between entities
Question 14 of 205.0/ 5.0 Points
In the relational modes, cardinalit is termed as+
A. #umber o" tuples.
B.#umber o" attributes.
C.#umber o" constraints.
D.#umber o" tables.
Question 15 of 205.0/ 5.0 Points
The !alues o" the attribute describes a particular
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A.2rgani6ation
B.ntit set
C.ntit instance
D.7ile
Question 16 of 200.0/ 5.0 Points
I" the condition gi!en below applies, which o" the "ollowing is appropriate as an %1 diagramshowing the departments emploees belong to>
A.
B.
C.
D.
Question 17 of 205.0/ 5.0 Points
;hich o" the "ollowing is not a restriction "or a table to be a relation>
A.All o" the entries in an column must be o" the same )ind.
B.#o two rows in a table ma be identical.
C.The columns must be ordered.
D.The cells o" the table must contain a single !alue.
Question 18 of 205.0/ 5.0 Points
An entit set that does not ha!e su""icient attributes to "orm a primar )e is a+
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A.$imple entit set.
B.Primar entit set.
C.;ea) entit set.
D.$trong entit set.
Question 19 of 205.0/ 5.0 Points
In the 1D diagram, the one%to%man relationship, Ea compan has multiple emploees,E is
e(pressed as "ollows+
;hich o" the "ollowing statements correctl e(plains the abo!e diagram>
A.2ne compan has multiple shareholders.
B.There are multiple companies, and each compan has multiple shareholders.
C.There are multiple companies, and each compan has a shareholder.
D.2ne compan has one shareholder.
Question 20 of 205.0/ 5.0 Points
In %1 diagram generali6ation is represented b
A.Dashed ellipse
B.llipse
C.1ectangle
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D.Triangle
Question 1 of 205.0/ 5.0 Points
A relational database de!eloper re"ers to a record as+
A.A criteria.
B.An attribute.
C.A relation.
D.A tuple.
Question 2 of 200.0/ 5.0 Points
In an %1 diagram double lines indicate
A.Total participation.
B.'ultiple participation.
C.Cardinalit #.
D.#one o" the abo!e.
Question 3 of 205.0/ 5.0 Points
#3
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I" both the "unctional dependencies + F? and ?F hold "or two attributes F and ? then the
relationship between F and ? is
A.'+*
B.*+*
C.'+#
D.*+'
Question 5 of 205.0/ 5.0 Points
The DB'$ acts as an inter"ace between what two components o" an enterprise%class database
sstem>
A. Database application and the database
B. Data and the database
C.Database application and $8<
D.The user and the database application
Question 6 of 200.0/ 5.0 Points
;hich o" the "ollowing is e(pressed b an %1 diagram>
A.1elation between entities
B.1elation between entit and process
C.1elation between processes
D.1elation between process and relationship
Question 7 of 205.0/ 5.0 Points
DB'$ helps achie!e+
A.Data independence.
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B.Centrali6ed control o" data.
C.#either 9A: nor 9B:.
D.Both 9A: and 9B:.
Question 8 of 205.0/ 5.0 Points
The database en!ironment has all o" the "ollowing components e(cept+
A.$eparate "iles.
B.Database.
C.3sers.
D. Database administrator.
Question 9 of 200.0/ 5.0 Points
The "ollowing data model has been created as a part o" a librar reser!ation sstem. ;hich is thecorrect description "or it> In this &uestion, * means one%to%man cardinalit and the underlined
attributes in the table de"inition are primar )es
3ser93serID, 3ser#ame, Address: 1eser!ation93serID, Boo)TitleID, 1eser!ationDate:
Boo)Title9Boo)TitleID, CategorCode, Boo)Title, Author:
$toc)edBoo)9$toc)edBoo)ID, Boo)TitleID, PurchaseDate,Cumulati!e
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;hich o" the "ollowing are the properties o" entities>
A.Attributes
B.$witchboards
C.Table
D.-roups
Question 11 of 205.0/ 5.0 Points
A relation is considered a+
A.three%dimensional table.
B.two%dimensional table.
C. one%dimensional table.
D.Column.
Question 12 of 205.0/ 5.0 Points
Conceptual design
A.Is designing the relational model.
B.Is a documentation techni&ue.
C. #eeds data !olume and processing "re&uencies to determine the si6e o" the database.
D.In!ol!es modelling independent o" the DB'$.
Question 13 of 200.0/ 5.0 Points
;hen the data model is represented to con"orm to the notational con!ention shown below,
which o" the "ollowing statements appropriatel interprets the designated %1 diagram>
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A.It doe not occur that a single order placement is gi!en "or multiple tpes o" products.
B.A single product is supplied b a single supplier.
C.It does not occur that a single order placement is gi!en to multiple suppliers.
D.2rder statements and deli!er statements ha!e a one%to%one correspondence.
Question 14 of 205.0/ 5.0 Points
?ou are building a new database "or a compan with *0 departments. ach department contains
multiple emploees. In addition, each emploee might wor) "or se!eral departments. 4ow
should ou logicall model the relationship between the department entit and the emploeeentit>
User(User_ID, User_Name, Address)
Reservation(User_ID, Book_Title_ID, Reservation_Date)
Book_Title(Book_Title_ID, Category_Code, Book_Title, Author)
to!ked_Book(to!ked_Book_ID, Book_Title_ID, "ur!hase_Date, Cumulative_#ending_Count)
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A.Create a mandator one%to%man relationship between department and emploee.
B.Create a new entr, create a one%to%man relationship "rom the emploee to the new
entr, and create a one%to%man relationship "rom the department entr to the new entr.
C.Create an optional one%to%man relationship between department and emploee.
D.Create a new entr, create a one%to%man relationship "rom the new entr to the
emploee entr, and then create a one%to%man relationship "rom the entr to the department
entr.
Question 15 of 205.0/ 5.0 Points
?ou are tas)ed with creating a database to manage where computers are installed at a companthat has o""ices in se!eral buildings. ?ou create an asset table, a room table, and a
building table, and lin) each o" them together. ;hen new data is entered, the data in there"erenced table must alread e(ist. ;hich o" the "ollowing is the appropriate order o" in%put>
4ere, the underlined items in each table are either primar or "oreign )es.
A.1oom table Asset table Building table
B.1oom table Building table Asset table
C.Asset table Building table 1oom table
D.Building table 1oom table Asset table
Question 16 of 205.0/ 5.0 Points
A DB'$ &uer language is designed to+
A.$upport end users who use nglish%li)e commands.
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B.$upport in the de!elopment o" comple( applications so"tware.
C.$peci" the structure o" a database.
D. All o" the abo!e.
Question 17 of 200.0/ 5.0 Points
;hich o" the "ollowing appropriatel describes a schema in a relational database managementsstem>
A.It is the general term "or !arious conditions and constraints that are used to maintain the
database in absolutel per"ect condition.
B.It is a set o" data de"initions such as the data properties, "ormat, relationship with other
data, etc.
C.It is not an actual table but a !irtual table "rom the perspecti!e o" the user.
D.It is the general term "or database operations such as data insertion, updating, deletion,
search, etc.
Question 18 of 205.0/ 5.0 Points
;hich o" the "ollowing is another name "or wea) entit>
A.Child
B.2wner
C.Dominant
D.All o" the abo!e
Question 19 of 205.0/ 5.0 Points
Consider the @oin o" a relation 1 with relation $. I" 1 has m tuples and $ has n tuples, then thema(imum si6e o" @oin is+
A.mn
B.9mn:
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C.9mn:/
D.mn
Question 20 of 20 5.0/ 5.0 Points%1 model uses this smbol to represent wea) entit set>
A.Dotted rectangle.
B.Diamond.
C.Doubl outlined rectangle.
D.#one o" these.
HAUI_010_NSD_Quiz1_DB Designe
5eturn toAssessment *ist
Part * o" * % 50.0/ *00.0 Points
Question 1 of 205.0/ 5.0 Points
;hich o" the "ollowing appropriatel describes a schema in a relational database management
sstem>
A.It is a set o" data de"initions such as the data properties, "ormat, relationship with other
data, etc.
B.It is not an actual table but a !irtual table "rom the perspecti!e o" the user.
C.It is the general term "or !arious conditions and constraints that are used to maintain the
database in absolutel per"ect condition.
D.It is the general term "or database operations such as data insertion, updating, deletion,
search, etc.
Question 2 of 200.0/ 5.0 Points
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The conceptual model is+
A. Independent o" both hardware and so"tware.
B.Dependent on so"tware.
C.Dependent on both hardware and so"tware.
D.Dependent on hardware.
Question 3 of 200.0/ 5.0 Points
In %1 Diagram total participation is represented b+
A.Double lines
B.$ingle line
C.Dashed lines
D.Triangle
Question 4 of 205.0/ 5.0 Points
A relation is considered a+
A. one%dimensional table.
B.Column.
C.two%dimensional table.
D.three%dimensional table.
Question 5 of 205.0/ 5.0 Points
;hat is a relationship called when it is maintained between two entities>
A.Binar
B.8uaternar
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C.Ternar
D.3nar
Question 6 of 20 0.0/ 5.0 PointsThe !alues o" the attribute describes a particular
A.7ile
B.ntit set
C.ntit instance
D.2rgani6ation
Question 7 of 200.0/ 5.0 Points
The "ile organi6ation that pro!ides !er "ast access to an arbitrar record o" a "ile is+
A.2rdered "ile.
B. B%tree.
C.4ashed "ile.
D.3nordered "ile.
Question 8 of 205.0/ 5.0 Points
In an %1 diagram attributes are represented b+
A.$&uare.
B.1ectangle.
C.Triangle.
D.llipse.
Question 9 of 200.0/ 5.0 Points
;hich o" the "ollowing is an accurate statement in regard to an %1 diagram>
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A.It clari"ies the operational relations between indi!idual processes and data. As a result,
the relations between introduced entities e(press the indi!idual operational processes.
B.It creates an abstraction o" in"ormation handled in operations, so as to e(press entities
and the relations between them.
C. It is created as a prete(t to implementing a relational database
D.It e(presses the entire process "rom data creating to destruction.
Question 10 of 205.0/ 5.0 Points
;hich o" the "ollowing is described graphicall using an %1 diagram>
A.4ierarchical data structure
B.Data "lows between processes
C.Data source and destination
D.ntities and relationships between entities
Question 11 of 200.0/ 5.0 Points
#3
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C.In!ol!es modelling independent o" the DB'$.
D.Is a documentation techni&ue.
Question 13 of 20 5.0/ 5.0 Points;hich o" the "ollowing is the appropriate characteristic o" a database>
A.The procedure "or ma)ing bac)ups is complicated.
B.It is di""icult to share data between operations due to an e(clusi!e control "unction.
C.It can be accessed b multiple users at the same time due to an e(clusi!e control
"unction.
D.Because a database is created to suit the "ormat o" the data, it cannot respond "le(ibl to
data "ormat changes.
Question 14 of 205.0/ 5.0 Points
In the relational modes, cardinalit is termed as+
A.#umber o" attributes.
B.#umber o" tables.
C. #umber o" tuples.
D.#umber o" constraints.
Question 15 of 205.0/ 5.0 Points
The entit%relationship diagrams A and B shows the relationships between three entities in a
school+ teacher, class, and classroom. ;hich o" the "ollowing is an appropriate interpretationconcerning the diagrams> 4ere, E * * E shows a one%to%one relationship while E * E shows a
one%to%man relationship.
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A.In A, when a teacher or a classroom is decided, a single class will be
decided. In B, i" a teacher and a classroom are decided, a single classwill be decided.
B.In A, one class is alwas assigned to the same classroom. In B, one
class ma be assigned to one or more classrooms.
C.In A, a teacher is responsible "or one class onl. In B, a teacher ma
be responsible "or one or more classes.
D.In A, one class is alwas super!ised b one teacher. In B, one class ma
be super!ised b one or more teachers.
Question 16 of 205.0/ 5.0 Points
;hat is data integrit>
A.It is the data contained in database that is secured.
B.It is the data contained in database that is accurate and consistent.
C.It is the data contained in database that is shared.
D.It is the data contained in database that is non redundant.
Question 17 of 205.0/ 5.0 Points
;hich o" the "ollowing are the properties o" entities>
A.-roups
B.$witchboards
C.Attributes
D.Table
Question 18 of 200.0/ 5.0 Points
DB'$ helps achie!e+
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A.Data independence.
B.Centrali6ed control o" data.
C.#either 9A: nor 9B:.
D.Both 9A: and 9B:.
Question 19 of 200.0/ 5.0 Points
It is better to use "iles than a DB'$ when there are+
A.$tringent real%time re&uirements.
B.'ultiple users wish to access the data.
C.Comple( relationships among data.
D. All o" the abo!e.
Question 20 of 200.0/ 5.0 Points
An entit set that does not ha!e su""icient attributes to "orm a primar )e is a+
A.Primar entit set.
B.$trong entit set.
C.;ea) entit set.
D.$imple entit set.
HAUI_010_NSD_Quiz1_DB Designe
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Question 1 of 200.0/ 5.0 Points
In %1 Diagram relationship tpe is represented b+
A.1ectangle
B.llipse
C.Diamond
D.Dashed ellipse
Question 2 of 205.0/ 5.0 Points
In a relation+
A.2rdering o" rows is immaterial.
B.#o two rows are identical.
C.9A: and 9B: both are true.
D.#one o" these.
Question 3 of 20 0.0/ 5.0 Points
;hich o" the "ollowing appropriatel describes a schema in a relational database management
sstem>
A.It is the general term "or !arious conditions and constraints that are used to maintain the
database in absolutel per"ect condition.
B.It is not an actual table but a !irtual table "rom the perspecti!e o" the user.
C.It is the general term "or database operations such as data insertion, updating, deletion,
search, etc.
D.It is a set o" data de"initions such as the data properties, "ormat, relationship with other
data, etc.
Question 4 of 205.0/ 5.0 Points
The method in which records are phsicall stored in a speci"ied order according to a )e "ield
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in each record
A.4ash.
B.Direct.
C.$e&uential.
D.All o" the abo!e.
Question 5 of 205.0/ 5.0 Points
A relational database de!eloper re"ers to a record as+
A.An attribute.
B.A criteria.
C.A relation.
D.A tuple.
Question 6 of 200.0/ 5.0 Points
The "ollowing data model has been created as a part o" a librar reser!ation sstem. ;hich is the
correct description "or it> In this &uestion, * means one%to%man cardinalit and the underlined
attributes in the table de"inition are primar )es
3ser93serID, 3ser#ame, Address: 1eser!ation93serID, Boo)TitleID, 1eser!ationDate:
Boo)Title9Boo)TitleID, CategorCode, Boo)Title, Author:
$toc)edBoo)9$toc)edBoo)ID, Boo)TitleID, PurchaseDate,Cumulati!e
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C.The cardinalit between the Boo)Title entit and $toc)edBoo) entit is opposite
D.The $toc)edBoo) to be lent can be decided at the time o" reser!ation
Question 7 of 20 0.0/ 5.0 Points;hich o" the "ollowing appropriatel describes a domain 9de"ined area:, a term used "or
relational databases>
A.It is a set o" !alues that attributes can hold.
B. It is a speci"ication "or coping the real world to a database.
C.It is the general term "or data insertion, updating, deletion, and search in a database.
D.It is a relationship deri!ed b appling the relational operations to the basic
relationship.
Question 8 of 200.0/ 5.0 Points
An instance o" relational schema 1 9A, B, C: has distinct !alues o" A including #3
A.A is a candidate )e.
B.A is not a candidate )e
C.A is a primar He
D.Both 9A: and 9C:
Question 9 of 200.0/ 5.0 Points
A set o" possible data !alues is called+
A.Degree.
B.Domain.
C.Attribute.
D.Tuple.
Question 10 of 20
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A table can ha!e onl one
A.Primar )e
B.$econdar )e
C.3ni&ue )e
D.Alternate )e
Question 11 of 205.0/ 5.0 Points
;hich o" the "ollowing statements correctl describes data normali6ation>
A.It reduces the amount o" re&uired memor space b simpli"ing database structures.
B.It "acilitates application program creation
C. It increases the e""icienc o" database searches
D.It pre!ent data multiplicit, thereb ma)ing maintenance and management easier
Question 12 of 200.0/ 5.0 Points
I" the condition gi!en below applies, which o" the "ollowing is appropriate as an %1 diagram
showing the departments emploees belong to>
A.
B.
C.
D.
Question 13 of 205.0/ 5.0 Points
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DB'$ helps achie!e+
A.Data independence.
B.Centrali6ed control o" data.
C.#either 9A: nor 9B:.
D.Both 9A: and 9B:.
Question 14 of 205.0/ 5.0 Points
;hich option is not T13>
A.3se !archar when our strings do not ha!e a "i(ed length.
B.3se char when our strings are alwas going to be the same length.
C.9A: and 9B: is true.
D.#either 9A: nor 9B:
Question 15 of 205.0/ 5.0 Points
In an %1 diagram an entit set is represent b a+
A.Diamond bo(.
B.llipse.
C.1ectangle.
D.Circle.
Question 16 of 200.0/ 5.0 Points
?ou are tas)ed with creating a database to manage where computers are installed at a compan
that has o""ices in se!eral buildings. ?ou create an asset table, a room table, and a
building table, and lin) each o" them together. ;hen new data is entered, the data in there"erenced table must alread e(ist. ;hich o" the "ollowing is the appropriate order o" in%put>
4ere, the underlined items in each table are either primar or "oreign )es.
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A.Building table 1oom table Asset table
B.1oom table Asset table Building table
C.1oom table Building table Asset table
D.Asset table Building table 1oom table
Question 17 of 200.0/ 5.0 Points
The DB'$ acts as an inter"ace between what two components o" an enterprise%class database
sstem>
A. Database application and the database
B. Data and the database
C.The user and the database application
D.Database application and $8<
Question 18 of 200.0/ 5.0 Points
%1 model uses this smbol to represent wea) entit set>
A.Dotted rectangle.
B.Diamond.
C.Doubl outlined rectangle.
D.#one o" these.
Question 19 of 20
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The conceptual model is+
A. Independent o" both hardware and so"tware.
B.Dependent on hardware.
C.Dependent on so"tware.
D.Dependent on both hardware and so"tware.
Question 20 of 200.0/ 5.0 Points
;hich o" the "ollowing is described graphicall using an %1 diagram>
A.4ierarchical data structure
B.Data source and destination
C.Data "lows between processes
D.ntities and relationships between entities
Question 1 of 205.0/ 5.0 Points
What is data integrity?
A.It is the data contained in database that is shared.
B.It is the data contained in database that is secured.
C.It is the data contained in database that is non redundant.
D.It is the data contained in database that is accurate and consistent.
Question 2 of 205.0/ 5.0 Points
A set of possible data values is called:
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A.Attribute.
B.Degree.
C.Domain.
D.Tuple.
Question 3 of 205.0/ 5.0 Points
The entity-relationship diagrams A and B shows the relationships between three entities in a school:teacher, class, and classroom. Which of the following is an appropriate interpretation concerning thediagrams? ere, ! " " ! shows a one-to-one relationship while ! " # ! shows a one-to-many relationship.
A.In A, one class is alwas assigned to the same classroom. In B, one
class ma be assigned to one or more classrooms.
B.In A, one class is alwas super!ised b one teacher. In B, one class ma
be super!ised b one or more teachers.
C.In A, when a teacher or a classroom is decided, a single class will be
decided. In B, i" a teacher and a classroom are decided, a single classwill be decided.
D.In A, a teacher is responsible "or one class onl. In B, a teacher ma
be responsible "or one or more classes.
Question 4 of 205.0/ 5.0 Points
An advantage of the database management approach is:
A.Data is dependent on programs.
B.Data redundanc increases.
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C.Data is integrated and can be accessed b multiple programs.
D. #one o" the abo!e.
Question 5 of 20 5.0/ 5.0 Points$t is better to use files than a %B&' when there are:
A.$tringent real%time re&uirements.
B.'ultiple users wish to access the data.
C.Comple( relationships among data.
D. All o" the abo!e.
Question 6 of 205.0/ 5.0 Points
()** is:
A.The same as 0 "or integer
B.The same as blan) "or character
C.The same as 0 "or integer and blan) "or character
D.#ot a !alue
Question 7 of 200.0/ 5.0 Points
$f both the functional dependencies : + and + hold for two attributes + and then the relationshipbetween + and is
A.*+*
B.*+'
C.'+#
D.'+*
Question 8 of 205.0/ 5.0 Points
Which of the following is the appropriate characteristic of a database?
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A.Because a database is created to suit the "ormat o" the data, it cannot respond "le(ibl to
data "ormat changes.
B.It is di""icult to share data between operations due to an e(clusi!e control "unction.
C.The procedure "or ma)ing bac)ups is complicated.
D.It can be accessed b multiple users at the same time due to an e(clusi!e control
"unction.
Question 9 of 205.0/ 5.0 Points
$n case of entity integrity, the primary ey may be:
A.#ot #ull
B.Both #ull not #ull.
C.#ull
Question 10 of 205.0/ 5.0 Points
Which of the following are the properties of entities?
A.-roups
B.$witchboards
C.Attributes
D.Table
Question 11 of 200.0/ 5.0 Points
ou are tased with creating a database to manage where computers are installed at a company that hasoffices in several buildings. ou create an /asset0 table, a /room0 table, and a /building0 table, and lineach of them together. When new data is entered, the data in the referenced table must already e1ist.Which of the following is the appropriate order of in-put? ere, the underlined items in each table areeither primary or foreign eys.
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A.Building table 1oom table Asset table
B.1oom table Building table Asset table
C.Asset table Building table 1oom table
D.1oom table Asset table Building table
Question 12 of 200.0/ 5.0 Points
ou are building a new database for a company with "2 departments. 3ach department contains multipleemployees. $n addition, each employee might wor for several departments. ow should you logicallymodel the relationship between the department entity and the employee entity?
User(User_ID, User_Name, Address)
Reservation(User_ID, Book_Title_ID, Reservation_Date)
Book_Title(Book_Title_ID, Category_Code, Book_Title, Author)
to!ked_Book(to!ked_Book_ID, Book_Title_ID, "ur!hase_Date, Cumulative_#ending_Count)
A.Create a new entr, create a one%to%man relationship "rom the new entr to the
emploee entr, and then create a one%to%man relationship "rom the entr to the department
entr.
B.Create a mandator one%to%man relationship between department and emploee.
C.Create an optional one%to%man relationship between department and emploee.
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D.Create a new entr, create a one%to%man relationship "rom the emploee to the new
entr, and create a one%to%man relationship "rom the department entr to the new entr.
Question 13 of 205.0/ 5.0 Points
The file organi4ation that provides very fast access to any arbitrary record of a file is:
A.2rdered "ile.
B. B%tree.
C.3nordered "ile.
D.4ashed "ile.
Question 14 of 20 5.0/ 5.0 Points
A relation is considered a:
A.three%dimensional table.
B.two%dimensional table.
C.Column.
D. one%dimensional table.
Question 15 of 205.0/ 5.0 Points
$n the 35% diagram, the one-to-many relationship, !a company has multiple employees,! is e1pressed asfollows:
Which of the following statements correctly e1plains the above diagram?
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A.There are multiple companies, and each compan has a shareholder.
B.There are multiple companies, and each compan has multiple shareholders.
C.2ne compan has one shareholder.
D.2ne compan has multiple shareholders.
Question 16 of 200.0/ 5.0 Points
$f the condition given below applies, which of the following is appropriate as an 3-5 diagram showing thedepartments employees belong to?
A.
B.
C.
D.
Question 17 of 200.0/ 5.0 Points
The values of the attribute describes a particular6666666666666
A.ntit set
B.ntit instance
C.2rgani6ation
D.7ile
Question 18 of 205.0/ 5.0 Points
$n the relational modes, cardinality is termed as:
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A.#umber o" tables.
B. #umber o" tuples.
C.#umber o" attributes.
D.#umber o" constraints.
Question 19 of 205.0/ 5.0 Points
What is a relationship called when it is maintained between two entities?
A.Ternar
B.Binar
C.8uaternar
D.3nar
Question 20 of 205.0/ 5.0 Points
Which of the following appropriately describes a domain 7defined area8, a term used for relationaldatabases?
A. It is a speci"ication "or coping the real world to a database.
B.It is a relationship deri!ed b appling the relational operations to the basic relationship.
C.It is the general term "or data insertion, updating, deletion, and search in a database.
D.It is a set o" !alues that attributes can hold.
Question 1 of 205.0/ 5.0 Points
$n a relation:
A.2rdering o" rows is immaterial.
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B.#o two rows are identical.
C.9A: and 9B: both are true.
D.#one o" these.
Question 2 of 205.0/ 5.0 Points
An instance of relational schema 5 7A, B, 98 has distinct values of A including ()** values. Which one of the following is true?
A.A is a candidate )e.
B.A is not a candidate )e
C.A is a primar He
D.Both 9A: and 9C:
Question 3 of 205.0/ 5.0 Points
%B&' helps achieve:
A.Data independence.
B.Centrali6ed control o" data.
C.#either 9A: nor 9B:.
D.Both 9A: and 9B:.
Question 4 of 205.0/ 5.0 Points
An advantage of the database management approach is:
A.Data is dependent on programs.
B.Data redundanc increases.
C.Data is integrated and can be accessed b multiple programs.
D. #one o" the abo!e.
Question 5 of 205.0/ 5.0 Points
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Which of the following is the appropriate characteristic of a database?
A.Because a database is created to suit the "ormat o" the data, it cannot respond "le(ibl to
data "ormat changes.
B.It is di""icult to share data between operations due to an e(clusi!e control "unction.
C.The procedure "or ma)ing bac)ups is complicated.
D.It can be accessed b multiple users at the same time due to an e(clusi!e control
"unction.
Question 6 of 205.0/ 5.0 Points
What is a relationship called when it is maintained between two entities?
A.Ternar
B.8uaternar
C.3nar
D.Binar
Question 7 of 205.0/ 5.0 Points
3-5 model uses this symbol to represent wea entity set?
A.Dotted rectangle.
B.Diamond.
C.Doubl outlined rectangle.
D.#one o" these.
Question 8 of 205.0/ 5.0 Points
What is data integrity?
A.It is the data contained in database that is accurate and consistent.
B.It is the data contained in database that is secured.
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C.It is the data contained in database that is non redundant.
D.It is the data contained in database that is shared.
Question 9 of 20 0.0/ 5.0 PointsThe following data model has been created as a part of a library reservation system. Which is the correctdescription for it? $n this uestion, " # means one-to-many cardinality and the underlined attributes in thetable definition are primary eys
)ser7)ser6$%, )ser6(ame, Address8 5eservation7)ser6$%, Boo6Title6$%, 5eservation6%ate8Boo6Title7Boo6Title6$%, 9ategory69ode, Boo6Title, Author8 'toced6Boo7'toced6Boo6$%,Boo6Title6$%, ;urchase6%ate, 9umulative6*ending69ount8
A. It is redundant to separate the Boo)Title entit and $toc)edBoo)ed entit
B.The cardinalit between the Boo)Title entit and $toc)edBoo) entit is opposite
C.The Boo)Title entit is an abstract entit that has no phsical substance
D.The $toc)edBoo) to be lent can be decided at the time o" reser!ation
Question 10 of 200.0/ 5.0 Points
The conceptual model is:
A.Dependent on hardware.
B. Independent o" both hardware and so"tware.
C.Dependent on both hardware and so"tware.
D.Dependent on so"tware.
Question 11 of 205.0/ 5.0 Points
Which of the following is e1pressed by an 3-5 diagram?
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A.1elation between entit and process
B.1elation between entities
C.1elation between processes
D.1elation between process and relationship
Question 12 of 205.0/ 5.0 Points
Which of the following is an accurate statement in regard to an 3-5 diagram?
A.It clari"ies the operational relations between indi!idual processes and data. As a result,
the relations between introduced entities e(press the indi!idual operational processes.
B. It is created as a prete(t to implementing a relational database
C.It e(presses the entire process "rom data creating to destruction.
D.It creates an abstraction o" in"ormation handled in operations, so as to e(press entities
and the relations between them.
Question 13 of 200.0/ 5.0 Points
$t is better to use files than a %B&' when there are:
A.$tringent real%time re&uirements.
B.'ultiple users wish to access the data.
C.Comple( relationships among data.
D. All o" the abo!e.
Question 14 of 200.0/ 5.0 Points
$n the relational modes, cardinality is termed as:
A. #umber o" tuples.
B.#umber o" tables.
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C.#umber o" constraints.
D.#umber o" attributes.
Question 15 of 20 0.0/ 5.0 Points A relation is considered a:
A.three%dimensional table.
B.two%dimensional table.
C. one%dimensional table.
D.Column.
Question 16 of 200.0/ 5.0 Points
The database environment has all of the following components e1cept:
A. Database administrator.
B.3sers.
C.Database.
D.$eparate "iles.
Question 17 of 200.0/ 5.0 Points
$n 3-5 diagram generali4ation is represented by
A.llipse
B.Dashed ellipse
C.Triangle
D.1ectangle
Question 18 of 200.0/ 5.0 Points
9onceptual design
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A. #eeds data !olume and processing "re&uencies to determine the si6e o" the database.
B.Is a documentation techni&ue.
C.Is designing the relational model.
D.In!ol!es modelling independent o" the DB'$.
Question 19 of 200.0/ 5.0 Points
Which of the following appropriately describes a domain 7defined area8, a term used for relationaldatabases?
A.It is the general term "or data insertion, updating, deletion, and search in a database.
B.It is a relationship deri!ed b appling the relational operations to the basic relationship.
C. It is a speci"ication "or coping the real world to a database.
D.It is a set o" !alues that attributes can hold.
Question 20 of 205.0/ 5.0 Points
$n the 35% diagram, the one-to-many relationship, !a company has multiple employees,! is e1pressed asfollows:
Which of the following statements correctly e1plains the above diagram?
A.2ne compan has multiple shareholders.
B.There are multiple companies, and each compan has multiple shareholders.
C.There are multiple companies, and each compan has a shareholder.
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D.2ne compan has one shareholder.
HAUI_010_NSD_Quiz1_DB Designe
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Part * o" * % 0.0/ *00.0 Points
Question 1 of 205.0/ 5.0 Points
?ou are tas)ed with creating a database to manage where computers are installed at a compan
that has o""ices in se!eral buildings. ?ou create an asset table, a room table, and abuilding table, and lin) each o" them together. ;hen new data is entered, the data in the
re"erenced table must alread e(ist. ;hich o" the "ollowing is the appropriate order o" in%put>4ere, the underlined items in each table are either primar or "oreign )es.
A.Building table 1oom table Asset table
B.1oom table Building table Asset table
C.1oom table Asset table Building table
D.Asset table Building table 1oom table
Question 2 of 20 5.0/ 5.0 Points;hich o" the "ollowing is e(pressed b an %1 diagram>
A.1elation between process and relationship
B.1elation between processes
https://gst.fsoft.com.vn/portal/tool/9354ff26-9491-4392-9e3a-1b7b3b65a788/jsf/select/selectIndexhttps://gst.fsoft.com.vn/portal/tool/9354ff26-9491-4392-9e3a-1b7b3b65a788/jsf/select/selectIndex
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C.1elation between entities
D.1elation between entit and process
Question 3 of 20 5.0/ 5.0 Points;hich o" the "ollowing appropriatel describes a domain 9de"ined area:, a term used "or
relational databases>
A.It is a relationship deri!ed b appling the relational operations to the basic
relationship.
B.It is a set o" !alues that attributes can hold.
C. It is a speci"ication "or coping the real world to a database.
D.It is the general term "or data insertion, updating, deletion, and search in a database.
Question 4 of 205.0/ 5.0 Points
The "ile organi6ation that pro!ides !er "ast access to an arbitrar record o" a "ile is+
A.4ashed "ile.
B. B%tree.
C.3nordered "ile.
D.2rdered "ile.
Question 5 of 200.0/ 5.0 Points
In an %1 diagram double lines indicate
A.Total participation.
B.'ultiple participation.
C.Cardinalit #.
D.#one o" the abo!e.
Question 6 of 205.0/ 5.0 Points
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Consider the @oin o" a relation 1 with relation $. I" 1 has m tuples and $ has n tuples, then the
ma(imum si6e o" @oin is+
A.9mn:
B.mn
C.mn
D.9mn:/
Question 7 of 205.0/ 5.0 Points
In %1 Diagram total participation is represented b+
A.Triangle
B.$ingle line
C.Double lines
D.Dashed lines
Question 8 of 205.0/ 5.0 Points
In the relational modes, cardinalit is termed as+
A.#umber o" tables.
B.#umber o" attributes.
C. #umber o" tuples.
D.#umber o" constraints.
Question 9 of 20 0.0/ 5.0 Points
In %1 diagram generali6ation is represented b
A.1ectangle
B.llipse
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C.Triangle
D.Dashed ellipse
Question 10 of 20 5.0/ 5.0 PointsA table can ha!e onl one
A.Alternate )e
B.Primar )e
C.$econdar )e
D.3ni&ue )e
Question 11 of 205.0/ 5.0 Points
A set o" possible data !alues is called+
A.Attribute.
B.Tuple.
C.Domain.
D.Degree.
Question 12 of 205.0/ 5.0 Points
;hich o" the "ollowing is the appropriate characteristic o" a database>
A.Because a database is created to suit the "ormat o" the data, it cannot respond "le(ibl to
data "ormat changes.
B.It is di""icult to share data between operations due to an e(clusi!e control "unction.
C.It can be accessed b multiple users at the same time due to an e(clusi!e control
"unction.
D.The procedure "or ma)ing bac)ups is complicated.
Question 13 of 205.0/ 5.0 Points
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In a relation+
A.2rdering o" rows is immaterial.
B.#o two rows are identical.
C.9A: and 9B: both are true.
D.#one o" these.
Question 14 of 205.0/ 5.0 Points
A relation is considered a+
A.three%dimensional table.
B. one%dimensional table.
C.Column.
D.two%dimensional table.
Question 15 of 205.0/ 5.0 Points
A relational database de!eloper re"ers to a record as+
A.A tuple.
B.A relation.
C.An attribute.
D.A criteria.
Question 16 of 205.0/ 5.0 Points
#3
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C.The same as 0 "or integer and blan) "or character
D.#ot a !alue
Question 17 of 20 5.0/ 5.0 PointsIn case o" entit integrit, the primar )e ma be+
A.Both #ull not #ull.
B.#ot #ull
C.#ull
Question 18 of 205.0/ 5.0 Points
;hich o" the "ollowing are the properties o" entities>
A.Table
B.Attributes
C.$witchboards
D.-roups
Question 19 of 205.0/ 5.0 Points
;hich o" the "ollowing is described graphicall using an %1 diagram>
A.ntities and relationships between entities
B.4ierarchical data structure
C.Data source and destination
D.Data "lows between processes
Question 20 of 205.0/ 5.0 Points
The 1DB'$ terminolog "or a row is+
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A.Attribute.
B.1elation.
C.Degree.
D.Tuple.