Net 175 Exam Study Guide

7/31/2019 Net 175 Exam Study Guide

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Question 1

3.85 out of 3.85 points

How many millions of bits per second can be transmitted in a Wi-Fi network?

Answer

Selected Answer:

11

Correct Answer:

11

Question 2


Where can a RFID tag be read?

Answer

Selected Answer:

anywhere within the range of a transmitted radio signal

Correct Answer:

anywhere within the range of a transmitted radio signal

Question 3


Why is a WLAN less expensive for business than a wired LAN?

Answer

Selected Answer:

no need to tunnel through walls and ceilings to install cable


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Correct Answer:

no need to tunnel through walls and ceilings to install cable

Question 4


What aspect of RF may produce biological damage?

Answer

Selected Answer:

heating effects

Correct Answer:

heating effects

Question 5


At what rate is the number of wireless hostpots increasing each year?

Answer

Selected Answer:

350%

Correct Answer:

350%

Question 6


What type of device is used for communication in a fixed broadband wireless network?

Answer


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Selected Answer:

antenna

Correct Answer:

antenna

Question 7


What is the maximum transmission distance for FSO?

Answer

Selected Answer:

4 miles

Correct Answer:

4 miles

Question 8


An increasingly____ workforce is one characteristic of todays business world.

Answer

Selected Answer:

mobile

Correct Answer:

mobile

Question 9



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Which of the following technologies came first chronologically?

Answer

Selected Answer:

leased transmission lines

Correct Answer:

leased transmission lines

Question 10


____ is a low-power wireless data and voice transmission technology.

Answer

Selected Answer:

Bluetooth

Correct Answer:

Bluetooth

Question 11


____ give team-based workers the ability to access the network resources that they need while

collaborating in a team environment.

Answer

Selected Answer:

WLANs

Correct Answer:

WLANs


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Question 12


Some airlines use WLAN technology to communicate with the aircraft once it has parked or is

taxiing on the ground.

Answer

Selected Answer: True

Correct Answer: True

Question 13


A WAP cell phone runs a tiny browser program called a microbrowser that uses Wireless

Markup Language (WML) instead of HTML.

Answer



Question 14


Where must a WiMax transmitter be located?

Answer

Selected Answer:

on the roof of a building

Correct Answer:

on the roof of a building

Question 15



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It is well documented that high levels of RF can produce biological damage.

Answer



Question 16


What is the range of transmission for a WPAN?

Answer

Selected Answer:

10 feet

Correct Answer:

10 feet

Question 17


When a Web server sends a Web page back to a PC, it is only sending HTML code; the ____ is

responsible for interpreting that code and displaying the results on the screen.

Answer

Selected Answer:

Web browser

Correct Answer:

Web browser

Question 18



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Which sector of the economy has adopted wireless technology most completely?

Answer

Selected Answer:

travel

Correct Answer:

travel

Question 19


A cold site is a fully functional office space generally run by a commercial disaster recovery

service that allows a business to continue computer and network operations to maintain

business continuity.

Answer

Selected Answer: False

Correct Answer: False

Question 20


If an organizations data processing center becomes inoperable, it can move all data processing

operations to a ____, often within an hour.

Answer

Selected Answer:

hot site

Correct Answer:

hot site

Question 21


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What type of device is used in the medical field to diagnose digestive problems without

surgery?

Answer

Selected Answer:

video pill

Correct Answer:

video pill

Question 22


A Bluetooth network that contains one master and at least one slave device forms a ____.

Answer

Selected Answer:

piconet

Correct Answer:

piconet

Question 23


An employee who purchases an access point and secretly brings it into the office in order to

provide personal wireless access has installed what is known as a ____ access point.

Answer

Selected Answer:

rogue


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Correct Answer:

rogue

Question 24


The ____ technology has a transmission distance of up to 10 meters.

Answer

Selected Answer:

Bluetooth

Correct Answer:

Bluetooth

Question 25


A large amount of equipment is required to create a wireless LAN.

Answer



Question 26


In a wireless network, the ____ acts as a base station to receive the signals and transmit signals

back to the wireless network interface cards in the other wireless devices.

Answer

Selected Answer:

access point


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Correct Answer:

access point

Question 1


What is another name for a NIC?

Answer

Selected Answer:

client network adapter

Correct Answer:

client network adapter

Question 2


Which of the following statements describes the difference between a CF wireless NIC and a PC

card?

Answer

Selected Answer:

PC card is larger than CF

Correct Answer:

PC card is larger than CF

Question 3


How does an access point receive electrical power if it is mounted in a location that is not close

to an electrical outlet?


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Answer

Selected

Answer:through the unused wires in a standard unshielded twisted pair (UTP)

Ethernet cable

Correct Answer:

through the unused wires in a standard unshielded twisted pair (UTP)

Ethernet cable

Question 4


The 802.11b standard can support wireless devices that are up to ____ meters apart.

Answer

Selected Answer:

115

Correct Answer:

115

Question 5


What is a disadvantage of standards?

Answer

Selected

Answer:they can open domestic markets in larger countries to overseas

competition

Correct Answer:

they can open domestic markets in larger countries to overseas


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competition

Question 6


Microsoft Windows has become the ____ standard operating system today for personal desktop

computers and network servers.

Answer

Selected Answer:

de facto

Correct Answer:

de facto

Question 7


When a business is registered as a ____ they are qualified be placed in an online database of

wireless hotspot locations.

Answer

Selected Answer:

Wi-Fi Zone

Correct Answer:

Wi-Fi Zone

Question 8


Most industry experts recommend one access point for no more than ____ users if they are

performing basic e-mail, light Web surfing, and occasionally transferring medium-sized files.


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Answer

Selected Answer:

50

Correct Answer:

50

Question 9


The radio frequency spectrum is divided into ____ different sections or bands.

Answer

Selected Answer:

450

Correct Answer:

450

Question 10


A device called a ____ must sometimes be attached to a PDA in order to establish a wireless

connection. The device contains a slot for a wireless NIC or similar device.

Answer

Selected Answer:

sled

Correct Answer:

sled

Question 11


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Which IEEE committee establishes standards for wireless wide area networks?

Answer

Selected Answer:

802.16

Correct Answer:

802.16

Question 12


Beginning with Windows ____, all Microsoft desktop operating systems recognize a wireless NIC

without the need for any external software drivers.

Answer

Selected Answer:

XP

Correct Answer:

XP

Question 13

0 out of 3.85 points

What function is performed by a wireless gateway?

Answer

Selected Answer:

authentication


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Correct Answer:

All of the above

Question 14


A(n) ____ card improves input/output speed over a PC Card by increasing the bus width to 32

bits yet still supports lower-voltage PC Cards.

Answer

Selected Answer:

CardBus

Correct Answer:

CardBus

Question 15


De facto standards are not actually standards at all.

Answer



Question 16


If a remote wireless bridge is in repeater mode it functions as a standard AP only and does notcommunicate with other remote wireless bridges.

Answer



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Question 17


If a remote wireless bridge is set to ____, it can only transmit to another bridge in root mode.

Answer

Selected Answer:

non-root mode

Correct Answer:

non-root mode

Question 18


Ultimately, who regulates standards that are developed by consortia?

Answer

Selected Answer:

the marketplace

Correct Answer:

the marketplace

Question 19


The IEEE 802.11g draft was a compromise based on input from several different chip

(microprocessor) manufacturers, who had a major stake in the outcome.

Answer



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Question 20


Which type of remote wireless bridge connection is used to connect multiple LAN segments

together?

Answer

Selected Answer:

point-to-multipoint

Correct Answer:

point-to-multipoint

Question 21


What is the name for the computer network architecture standards developed by the IEEE?

Answer

Selected Answer:

Project 802

Correct Answer:

Project 802

Question 22


CF cards consist of a small circuit board that contains flash memory chips and a dedicated

controller chip.

Answer


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Question 23


An access point has a(n) ____ wired network interface that allows it to connect by cable to a

standard wired network.

Answer

Selected Answer:

RJ-45

Correct Answer:

RJ-45

Question 24


Most bridges have what is known as ____ that minimizes the spread of the signal so that it can

reach farther distances.

Answer

Selected Answer:

delay spread

Correct Answer:

delay spread

Question 25


The IEEE 802.11 standard outlines the use of ____ transmissions for WLANs.


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Answer

Selected Answer:

diffused infrared

Correct Answer:

diffused infrared

Question 26


Only one type of wireless NIC is available for laptop computers.

Answer



Question 1


____ antennas are used for long distance, point-to-point wireless links, such as connecting

buildings that are up to 42 kilometers (25 miles) apart.

Answer

Selected Answer:

Highly-directional

Correct Answer:

Highly-directional

Question 2


____ polarization is typically used in wireless LANs with the dual antennas of access points


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pointing upward.

Answer

Selected Answer:

Vertical

Correct Answer:

Vertical

Question 3


Which of the following types of wave is imperceptible?

Answer

Selected Answer:

radio

Correct Answer:

radio

Question 4


The maximum EIRP for IEEE 802.11b WLANs is ____ mW.

Answer

Selected Answer:

100

Correct Answer:

100

Question 5


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What is a problem with measuring RF loss using a linear scale?

Answer

Selected Answer:

it does not reveal what the loss is in relation to the whole

Correct Answer:

it does not reveal what the loss is in relation to the whole

Question 6


What is the shape of a Fresnel zone?

Answer

Selected Answer:

Ellipsoidal

Correct Answer:

Ellipsoidal

Question 7


Television uses three types of modulation. The video portion uses ____.

Answer

Selected Answer:

AM

Correct Answer:


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AM

Question 8


In a wireless transmission data travels on invisible radio waves.

Answer



Question 9


Which of the following units is used to measure frequency?

Answer

Selected Answer:

hertz

Correct Answer:

hertz

Question 10


A basic rule of thumb is that each 6 dB increase in EIRP results in a quadrupling of the

transmission range (distance from the antenna), and a 6 dB reduction in EIRP translates into

reducing the range by four

Answer




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Question 11


Whenever a wave completes its trip and returns back to the starting point it has finished two

cycles.

Answer



Question 12


Which type of RF loss is caused by the equipment transmitting the signal?

Answer

Selected Answer:

Voltage Standing Wave Ratio

Correct Answer:


Question 13


____ modulation changes the number of waves representing one cycle.

Answer

Selected Answer:

Frequency

Correct Answer:

Frequency


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Question 14


A loss of 10 decibels means that ____ percent of the power has been lost in mW.

Answer

Selected Answer:

90

Correct Answer:

90

Question 15


Highly-directional antennas are generally concave dish-shaped devices.

Answer



Question 16


Which digital modulation technique is similar to frequency modulation?

Answer

Selected Answer:

frequency shift keying

Correct Answer:

frequency shift keying

Question 17


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The term ____ describes the rate of electrical flow.

Answer

Selected Answer:

current

Correct Answer:

current

Question 18


The length of an antenna should be about ____ the wavelength.

Answer

Selected Answer:

1/4 of

Correct Answer:

1/4 of

Question 19


When an RF signal moves from one medium to another of a different density the signal actually

bends instead of traveling in a straight line. This is known as ____.

Answer

Selected Answer:

refraction


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Correct Answer:

refraction

Question 20


A ____ dipole antenna produces a flatter signal than a standard dipole antenna.

Answer

Selected Answer:

high-gain

Correct Answer:

high-gain

Question 21


What is the free space loss (in dB) for IEEE 802.11b and 802.11g WLANs when the distance in

meters is 100?

Answer

Selected Answer:

80

Correct Answer:

80

Question 22


When a digital signal needs to be transmitted over an analog medium, such as when a computer

needs to send digital signals over an analog telephone line or TV cable, a device known as a(n)


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____ is used.

Answer

Selected Answer:

modem

Correct Answer:

modem

Question 23


Electromagnetic waves travel freely through space in all directions at the speed of light, or

approximately ____ per second.

Answer

Selected Answer:

186,000 miles

Correct Answer:

186,000 miles

Question 24


The ASK 1 bit has a carrier signal (positive voltage) while a 0 bit has no signal (zero voltage).

Answer



Question 25



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Which of the following is an electromagnetic wave?

Answer

Selected Answer:

All of the above

Correct Answer:

All of the above

Question 26


____ can occur intentionally from an external power source that amplifies the signal, or

unintentionally when an RF signal bounces off an object and combines with the original signal to

amplify it.

Answer

Selected Answer:

Gain

Correct Answer:

Gain

Sunday, June 10, 2012 11:50:49 PM EDT

Question 1


What techniques are used by vendors to achieve 2x mode for transmissions?

Answer

Selected Answer:

All of the above


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Correct Answer:

All of the above

Question 2


____ is not part of a frame.

Answer

Selected Answer:

Channel

Correct Answer:

Channel

Question 3


DSSS uses a bit pattern called a ____ code.

Answer

Selected Answer:

chipping

Correct Answer:

chipping

Question 4


The ____ field of an 802.11a frame consists of 10 repetitions of a short training sequence signal

and two repetitions of a long training sequence signal.

Answer


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Selected Answer:

Synchronization

Correct Answer:

Synchronization

Question 5


When using the Shared Wireless Access Protocol, devices can be as far as 45 meters (150 feet)

apart and can send and receive data at rates up to ____ Mbps.

Answer

Selected Answer:

10

Correct Answer:

10

Question 6


Because wireless technology has advanced at such a rapid pace, the earliest WLANs are now

essentially obsolete.

Answer



Question 7


____ signals by nature transmit on only one frequency or a very narrow portion of the


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frequencies.

Answer

Selected Answer:

Radio

Correct Answer:

Radio

Question 8


What is the top layer of the OSI reference model?

Answer

Selected Answer:

application

Correct Answer:

application

Question 9


IEEE has divided the ____ layer into two sublayers: Logical Link Control (LLC) and Media Access

Control (MAC).

Answer

Selected Answer:

Data Link

Correct Answer:

Data Link


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Question 10


Increasing the speed of the WLAN will cause shorter delays in waiting for reflections.

Answer



Question 11


In FHSS, the amount of time needed to move from one frequency to another is the ____ time.

Answer

Selected Answer:

hop

Correct Answer:

hop

Question 12


How does OFDM work?

Answer

Selected Answer:

signals are broken up and the parts are sent in parallel

Correct Answer:

signals are broken up and the parts are sent in parallel

Question 13


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What is a disadvantage of narrowband transmissions?

Answer

Selected Answer:

interference from another radio signal

Correct Answer:

interference from another radio signal

Question 14


The ____ coding technique consists of a set of 64 8-bit code words.

Answer

Selected Answer:

complementary code keying

Correct Answer:

complementary code keying

Question 15


The 802.11b standard specifies ____ frequencies that can be used, beginning at 2.412 GHz.

Answer

Selected Answer:

14

Correct Answer:


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14

Question 16


Which system is preferred for 802.11b WLANs?

Answer

Selected Answer:

DSSS

Correct Answer:

DSSS

Question 17


Of the 52 subchannels, 32 are used for standard transmissions and 20 are used for FEC

transmissions.

Answer



Question 18


Which layer of the OSI reference model permits the devices on the network to hold ongoing

communications across the network?

Answer

Selected Answer:

session


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speed?

Answer

Selected Answer:

between 10 and 20 Mbps

Correct Answer:

between 10 and 20 Mbps

Question 22


When transmitting with FHSS, if interference is encountered on a particular frequency then that

part of the signal will be retransmitted on the previous frequency of the hopping code.

Answer



Question 23


Into which layers are WLAN features isolated by IEEE standards?

Answer

Selected Answer:

PHY and MAC

Correct Answer:

PHY and MAC

Question 24



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The Physical Layer Convergence Procedure (PLCP) standards for 802.11b are based on ____.

Answer

Selected Answer:

DSSS

Correct Answer:

DSSS

Question 25


The value of layers in the OSI reference model is that it divides networking into a series of tasks,

and then illustrates how those tasks relate to each other.

Answer



Question 26


When was the concept used by FHSS technology developed?

Answer

Selected Answer:

during World War II

Correct Answer:

during World War II

Sunday, June 17, 2012 1:24:29 AM EDT


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An access point sends out a beacon frame containing a ____ identifying the stations that have buffered

frames waiting at the access point.

Answer

Selected Answer:

traffic indication map

Correct Answer:

traffic indication map

Question 2


Which of the following describes a wireless device switching from one AP to another?

Answer

Selected Answer:

roaming

Correct Answer:

handoff

Question 3


The ____ field appears first in a management frame.

Answer

Selected Answer:

Frame control

Correct Answer:

Frame control


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Question 4


When an ESS is installed it is desirable to configure the areas of coverage much like cells in a

cellular telephone system.

Answer



Question 5


The first major function of the MAC layer involves defining procedures for a wireless device to

discover the WLAN.

Answer



Question 6


At regular intervals the AP in an infrastructure network or wireless device in an ad hoc network

sends a ____ frame both to announce its presence and to provide the necessary information for

other devices to join the network.

Answer

Selected Answer:

beacon

Correct Answer:

beacon

Question 7


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Why is CSMA/CD unsuitable for wireless networks?

Answer

Selected Answer:

Both A and B

Correct Answer:

Both A and B

Question 8


CSMA/CA eliminates the possibility of collisions.

Answer



Question 9


Wireless authentication involves a user logging on to the access point.

Answer



Question 10


Following authentication, if the access point accepts the wireless device, it reserves memory

space in the AP and establishes a(n) ____ ID for it.


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Answer

Selected Answer:

association

Correct Answer:

association

Question 11


The ____ field appears last in a data frame.

Answer

Selected Answer:

Frame check sequence

Correct Answer:

Frame check sequence

Question 12


The ____ draft defines a superset of features that is intended to provide QoS over WLANs.

Answer

Selected Answer:

802.11e

Correct Answer:

802.11e

Question 13



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____ effectively prevents collisions because every device must wait until it receives permission

before it can transmit.

Answer

Selected Answer:

CSMA/CA

Correct Answer:

Polling

Question 14


When an AP accepts or rejects a wireless device it sends a(n) ____ frame.

Answer

Selected Answer:

association response

Correct Answer:

association response

Question 15


All frames contain the MAC address of the source and destination device, a frame sequence

number, and a frame ____ used for error detection.

Answer

Selected Answer:

check sequence

Correct Answer:


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check sequence

Question 16


In an infrastructure network the beacon interval is normally set to ____ ms, although it can be

modified.

Answer

Selected Answer:

100

Correct Answer:

100

Question 17


With MobileIP, the ____ assigns the mobile computer a new (but temporary) IP number.

Answer

Selected Answer:

foreign agent

Correct Answer:

foreign agent

Question 18


What is the default authentication method according to the 802.11 standard?

Answer


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Selected Answer:

open system

Correct Answer:

open system

Question 19


On ESS networks that have multiple access points, the wireless device might actually receive

beacon frames from several APs. Which AP would a wireless device generally choose in this

case?

Answer

Selected Answer:

the one with the strongest signal strength

Correct Answer:

the one with the strongest signal strength

Question 20


A BSS is ____.

Answer

Selected Answer:

a group of wireless devices that is served by a single access point

Correct Answer:

a group of wireless devices that is served by a single access point

Question 21


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A home agent is a forwarding mechanism that keeps track of where the mobile computer is

located.

Answer



Question 22


The 802.11 standard provides an option that can be used when collisions occur due to a hidden

node. That option is known as ____.

Answer

Selected Answer:

virtual carrier sensing

Correct Answer:

virtual carrier sensing

Question 23


What is the first step in shared key authentication?

Answer

Selected Answer:

wireless device sends an authentication frame to the AP

Correct Answer:

wireless device sends an authentication frame to the AP

Question 24


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What is the minimum number of BSS networks required to form an ESS?

Answer

Selected Answer:

2

Correct Answer:

2

Question 25


What is the difference between passive and active scanning?

Answer

Selected Answer:

which device initiates the discovery

Correct Answer:

which device initiates the discovery

Question 26


The RTS/CTS protocol is especially taxing when ____ data packets are being transmitted.

Answer

Selected Answer:

short

Correct Answer:


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short

Question 1


When considering the number of users who will be associated with an access point, it is only

necessary to count the number of users, not the type of work they do.

Answer



Question 2


What is a disadvantage of thin access points?

Answer

Selected Answer:

all thin access points and switches are proprietary

Correct Answer:

all thin access points and switches are proprietary

Question 3


Which of the following should be included when documenting current network setup?

Answer

Selected Answer:

types of clients


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Correct Answer:

types of clients

Question 4


In a 802.11b network, how many power users should be associated with one access point?

Answer

Selected Answer:

15

Correct Answer:

15

Question 5


____ should be considered when calculating ROI.

Answer

Selected Answer:

All of the above

Correct Answer:

All of the above

Question 6


When determining which standard to use, if there are other devices in the immediate area that

use the 2.4GHz wireless spectrum, such as portable telephones and microwave ovens then the

____ standard, which uses the 5 GHz wireless spectrum, might be the best solution.


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Answer

Selected Answer:

802.11a

Correct Answer:

802.11a

Question 7


Wireless access to network resources can improve the quality and productivity of meetings.

Answer



Question 8


Early adopters of wireless LANs were sometimes called racehorses.

Answer



Question 9


Only in areas where low bandwidth is acceptable or an ad hoc wireless network will be used

should ____ networks be considered.

Answer

Selected Answer:


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802.11b

Correct Answer:

802.11b

Question 10


Establishing and staffing an internal help desk is one of the most effective means of support.

Answer



Question 11


What is the second step in the wireless LAN model developed by Intel?

Answer

Selected Answer:

develop a report

Correct Answer:

develop a report

Question 12


Two adjacent access points that use the same ____ can cause interference and lost frames.

Answer

Selected Answer:


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channel

Correct Answer:

channel

Question 13


____ generates low interference.

Answer

Selected Answer:

Wood

Correct Answer:

Wood

Question 14


Which channels in IEEE 802.11b and 802.11g networks do not overlap?

Answer

Selected Answer:

1, 6, and 11

Correct Answer:

1, 6, and 11

Question 15


____ generates the highest level of interference.


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Answer

Selected Answer:

Metal

Correct Answer:

Metal

Question 16


Which organization would most likely not benefit from the introduction of a wireless LAN?

Answer

Selected

Answer:business that is rapidly losing market share and has changed CEOs three

times in the last 18 months

Correct

Answer:business that is rapidly losing market share and has changed CEOs three

times in the last 18 months

Question 17


What should you do when electrical alternating current power is not available near the AP

location?

Answer

Selected Answer:

user Power over Ethernet

Correct Answer:


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user Power over Ethernet

Question 18


____ is considered a hard benefit.

Answer

Selected Answer:

Cost reduction

Correct Answer:

Cost reduction

Question 19


A(n) ____ provides wireless LAN service, for free or for a fee, from a variety of public areas,

including coffee shops, public libraries, and airport lounges.

Answer

Selected Answer:

hotspot

Correct Answer:

hotspot

Question 20


____ is one of the most effective strategies for providing support for a new wireless network.

Answer


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Selected Answer:

Maintaining a help desk

Correct Answer:

Maintaining a help desk

Question 21


Intel recommends that once the ROI model is complete, larger organizations should return to

step ____.

Answer

Selected Answer:

1

Correct Answer:

1

Question 22


According to a study conducted by NOP WorldTechnology, wireless LANs enable users to be

connected to network resources ____ additional hours per day.

Answer

Selected Answer:

1.75

Correct Answer:

1.75

Question 23


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What is the single most important tool in any business?

Answer

Selected Answer:

personal networked computer

Correct Answer:

personal networked computer

Question 24


According to NOP-World Technology, ____ percent of end users said that a WLAN improves

their quality of life by increasing flexibility and productivity, and saving time.

Answer

Selected Answer:

87

Correct Answer:

87

Question 25


Several vendors are working on comprehensive network management solutions that integrate

wireless networks into the same deployment, operations, and management as a wired network.

Answer



Question 26


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What do many industry experts believe is the greatest opportunity for business-process

improvement at the beginning of the 21st century?

Answer

Selected Answer:

extending network access to employees who are away from their desks

Correct Answer:

extending network access to employees who are away from their desks

Question 1


What affects the coverage pattern?

Answer

Selected Answer:

objects that interfere with the RF signal

Correct Answer:

objects that interfere with the RF signal

Question 2


What is a consideration when conducting an outdoor site survey?

Answer

Selected Answer:

All of the above


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What should you be sure to do when collecting RF information?

Answer

Selected Answer:

observe the data being displayed by the software measurement tools

Correct Answer:

observe the data being displayed by the software measurement tools

Question 9


What is the most basic tool or component involved in a site survey?

Answer

Selected Answer:

access point

Correct Answer:

access point

Question 10


You would use ____ in documenting a site survey.

Answer

Selected Answer:

All of the above

Correct Answer:


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All of the above

Question 11


In a site survey analyzer, vendors use an algorithm or a lookup table to convert ____ values to

dBm, mW, or signal strength percentage.

Answer

Selected Answer:

RSSI

Correct Answer:

RSSI

Question 12


What is a drawback of a spectrum analyzer?

Answer

Selected Answer:

information is displayed in graphical form and not as raw data

Correct Answer:

information is displayed in graphical form and not as raw data

Question 13


The first step in collecting RF information is to position the access point in what may appear to

be the most logical location.

Answer


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Question 14


The industry-standard form for site survey documentation is IEEE 802.11D.

Answer



Question 15


The ____ setting of a site survey analyzer specifies the AP that will be involved in the test.

Answer

Selected Answer:

Destination MAC Address

Correct Answer:

Destination MAC Address

Question 16


The term ____ describes the rate of transmission falling as the device moves farther from the

AP.

Answer

Selected Answer:

data rate boundaries


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Correct Answer:

data rate boundaries

Question 17


Which site survey analyzer setting sets the number of times a transmission will be repeated if an

acknowledgment (ACK) frame is not returned by the destination device?

Answer

Selected Answer:

data retries

Correct Answer:

data retries

Question 18


What are the parts of a site survey report?

Answer

Selected Answer:

narrative section, graphical section

Correct Answer:

narrative section, graphical section

Question 19


What is the best way to gather site-specific documentation?

Answer


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Selected Answer:

inspecting the site

Correct Answer:

inspecting the site

Question 20


What type of AP antenna is most commonly used in a site survey?

Answer

Selected Answer:

omnidirectional

Correct Answer:

omnidirectional

Question 21


It is important to evaluate the placement of the access points and antennas throughout the

proposed site in order to meet the design goals.

Answer



Question 22


Which network requires some sort of gateway or interface to be compatible with IEEE 802.11

WLANs?


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Answer

Selected Answer:

Token Ring

Correct Answer:

Token Ring

Question 23


The most common type of antenna for a WLAN is an semi-directional antenna, also known as a

dipole antenna.

Answer



Question 24


A drawback of spectrum analyzers is that the information is displayed in graphical form and not

as raw data.

Answer



Question 25


How are business requirements for a WLAN obtained?

Answer


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Selected Answer:

interviewing management

Correct Answer:

interviewing management

Question 26


What is a requirement for an access point used in a site survey?

Answer

Selected Answer:

external antenna connectors

Correct Answer:

external antenna connectors

Question 1


____ is another name for open systems authentication.

Answer

Selected Answer:

SSID filtering

Correct Answer:

SSID filtering

Question 2



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Which characteristic of information is guarded by access control?

Answer

Selected Answer:

availability

Correct Answer:

availability

Question 3


In a 64-bit packet sent using WEP, how many bits are actually encrypted?

Answer

Selected Answer:

40

Correct Answer:

40

Question 4


On wireless networks, ____ attacks are commonly done by attackers setting up a fake access

point.

Answer

Selected Answer:

man-in-the-middle

Correct Answer:

man-in-the-middle


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Question 5


Which type of attacker typically has a high skill level?

Answer

Selected Answer:

All of the above

Correct Answer:

All of the above

Question 6


In WEP, the CRC generates a(n) ____ based on the contents of the text.

Answer

Selected Answer:

checksum

Correct Answer:

checksum

Question 7


A ____ attack on WEP involves viewing collisions to derive plaintext values.

Answer

Selected Answer:

keystream


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Correct Answer:

keystream

Question 8


Information security involves more than protecting the information itself.

Answer



Question 9


A wireless DoS attack may involve an attacker sending a series of ____ frames to a wireless

device.

Answer

Selected Answer:

disassociation

Correct Answer:

disassociation

Question 10


MAC address filtering is vulnerable because there are programs available that allow users to____ a MAC address.

Answer

Selected Answer:


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spoof

Correct Answer:

spoof

Question 11


A ____ is not malicious but often seeks to expose security flaws.

Answer

Selected Answer:

hacker

Correct Answer:

hacker

Question 12


Which aspect of information security does WEP protect?

Answer

Selected Answer:

confidentiality

Correct Answer:

confidentiality

Question 13


Open system authentication and shared key authentication are the only two types of wireless


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second.

Answer

Selected Answer:

1,000,000

Correct Answer:

1,000,000

Question 17


____ was initially founded by the U.S. Department of Defense and is now part of the Software

Engineering Institute at Carnegie Mellon University.

Answer

Selected Answer:

Computer Emergency Response Team Coordination Center (CERT/CC)

Correct Answer:

Computer Emergency Response Team Coordination Center (CERT/CC)

Question 18


Employees pose only a small threat to networks.

Answer



Question 19



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A WEP key can be a passphrase created by entering ____ ASCII characters.

Answer

Selected Answer:

16

Correct Answer:

16

Question 20


According to the IEEE 802.11 cryptography objectives, how strong should WEP be?

Answer

Selected Answer:

reasonably

Correct Answer:

reasonably

Question 21


Cryptography is a new invention of the 20th Century.

Answer



Question 22


What disadvantage of wireless networks provides the biggest stumbling block to the adoption of


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wireless technology?

Answer

Selected Answer:

security

Correct Answer:

security

Question 23


MAC address filtering ____.

Answer

Selected Answer:

requires pre-approved authentication

Correct Answer:

requires pre-approved authentication

Question 24


Wireless DoS attacks are exactly the same as wired DoS attacks.

Answer



Question 25


____ ensures that the information is correct and that no unauthorized person or malicious


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software program has altered that data.

Answer

Selected Answer:

Integrity

Correct Answer:

Integrity

Question 26


When the recipient receives the encrypted text, it must be decrypted with the cipher and the

key to produce the original ____.

Answer

Selected Answer:

plaintext

Correct Answer:

plaintext

Tuesday, July 3, 2012 1:39:08 AM EDT

Instructions

false

Question 1


The ____ method of encryption is used in a personal security model.

Answer

Selected Answer:


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TKIP

Correct Answer:

TKIP

Question 2


At the heart of a WIDS are ____; these devices, which can be either separate hardware devices

or a standard access point operating in a special scan mode, monitor the airwaves to detect

signals from rogue access points.

Answer

Selected Answer:

wireless sensors

Correct Answer:

wireless sensors

Question 3


What feature of IEEE 802.11i allows a device to become authenticated to an AP before moving

to it?

Answer

Selected Answer:

pre-authentication

Correct Answer:

pre-authentication

Question 4



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WEP2 attempted to overcome the limitations of WEP by adding two new security

enhancements.

Answer



Question 5


____ replaces CRC in WPA.

Answer

Selected Answer:

MIC

Correct Answer:

MIC

Question 6


The 802.11i standard addresses both ____.

Answer

Selected Answer:

encryption and authentication

Correct Answer:

encryption and authentication

Question 7



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The block cipher used in 802.11i is the Data Encryption Standard (DES).

Answer



Question 16


In dynamic WEP, the ____ key is changed every time the user roams to a new AP or logs out and

logs back in.

Answer

Selected Answer:

unicast

Correct Answer:

unicast

Question 17


The personal security model is intended for settings in which a(n) ____ is unavailable.

Answer

Selected Answer:

authentication server

Correct Answer:

authentication server

Question 18



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Pre-shared key (PSK) authentication uses a passphrase that is automatically generated to

generate the encryption key.

Answer



Question 22


Encryption under the WPA2 personal security model is accomplished by using the block cipher

____.

Answer

Selected Answer:

AES

Correct Answer:

AES

Question 23


Within the IEEE 802.1x standard, ____ ensures that a device (wired or wireless) that requests

access to the network is prevented from receiving any traffic until its identity can be verified.

Answer

Selected Answer:

port security

Correct Answer:

port security


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Question 24


WPA authentication can be accomplished by using either IEEE 802.1x or pre-shared key (PSK)

technology.

Answer



Question 25


What is the first step in implementing an interim security model?

Answer

Selected Answer:

shared key authentication

Correct Answer:

shared key authentication

Question 26


A virtual private network (VPN) uses a public, unsecured network as if it were a private, secured

network.

Answer




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What is the last step in RF site tuning?

Answer

Selected Answer:

documenting changes

Correct Answer:

documenting changes

Question 2


A ____ limits the amplitude and disturbing interference voltages by channeling them to the

ground.

Answer

Selected Answer:

lightning arrestor

Correct Answer:

lightning arrestor

Question 3


Antenna adjustment may require the existing antennas to be reoriented or placed on a pole or

mast for better transmission and reception.

Answer



Question 4



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What tool(s) are used most often as standard network monitoring tools?

Answer

Selected Answer:

Simple Network Management Protocol and Remote Monitoring

Correct Answer:

Simple Network Management Protocol and Remote Monitoring

Question 11


The current version of SNMP (____) addresses security and remote configuration.

Answer

Selected Answer:

v3

Correct Answer:

v3

Question 12


It is important for wireless system administrators to maintain a(n) ____ log that contains a

record of all problems, solutions, and configuration changes.

Answer

Selected Answer:

manual


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Correct Answer:

manual

Question 13


Most vendors illustrate their radiation patterns by splitting the three-dimensional donut into

two perpendicular planes called ____ and elevation.

Answer

Selected Answer:

azimuth

Correct Answer:

azimuth

Question 14


A ____ antenna is most typically used on a WLAN.

Answer

Selected Answer:

rod

Correct Answer:

rod

Question 15


When updating firmware in an enterprise-level access point, the Receiving AP must be able to

hear the IP ____ issued by the Distribution AP.


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functioning or be seriously crippled in its capacity to perform.

Answer

Selected Answer:

catastrophic

Correct Answer:

catastrophic

Question 19


Which type of RF loss is caused by the equipment itself, not external objects?

Answer

Selected Answer:


Correct Answer:


Question 20


____ is a nonvolatile storage chip used in computers and other devices.

Answer

Selected Answer:

Firmware

Correct Answer:

EEPROM

Question 21


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Almost all WLAN vendors provide utilities to assist in monitoring the wireless network.

Answer



Question 22


When conducting a security audit, ____ should determine vulnerabilities.

Answer

Selected Answer:

a team with diverse backgrounds

Correct Answer:

a team with diverse backgrounds

Question 23


____ security protects the equipment and infrastructure itself, and has one primary goal: to

prevent unauthorized users from reaching the equipment in order to use, steal, or vandalize it.

Answer

Selected Answer:

Physical

Correct Answer:

Physical

Question 24


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