net 175 exam study guide
TRANSCRIPT
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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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
What aspect of RF may produce biological damage?
Answer
Selected Answer:
heating effects
Correct Answer:
heating effects
Question 5
3.85 out of 3.85 points
At what rate is the number of wireless hostpots increasing each year?
Answer
Selected Answer:
350%
Correct Answer:
350%
Question 6
3.85 out of 3.85 points
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
3.85 out of 3.85 points
What is the maximum transmission distance for FSO?
Answer
Selected Answer:
4 miles
Correct Answer:
4 miles
Question 8
3.85 out of 3.85 points
An increasingly____ workforce is one characteristic of todays business world.
Answer
Selected Answer:
mobile
Correct Answer:
mobile
Question 9
3.85 out of 3.85 points
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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
3.85 out of 3.85 points
____ is a low-power wireless data and voice transmission technology.
Answer
Selected Answer:
Bluetooth
Correct Answer:
Bluetooth
Question 11
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
A WAP cell phone runs a tiny browser program called a microbrowser that uses Wireless
Markup Language (WML) instead of HTML.
Answer
Selected Answer: True
Correct Answer: True
Question 14
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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It is well documented that high levels of RF can produce biological damage.
Answer
Selected Answer: True
Correct Answer: True
Question 16
3.85 out of 3.85 points
What is the range of transmission for a WPAN?
Answer
Selected Answer:
10 feet
Correct Answer:
10 feet
Question 17
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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Which sector of the economy has adopted wireless technology most completely?
Answer
Selected Answer:
travel
Correct Answer:
travel
Question 19
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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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3.85 out of 3.85 points
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
3.85 out of 3.85 points
A Bluetooth network that contains one master and at least one slave device forms a ____.
Answer
Selected Answer:
piconet
Correct Answer:
piconet
Question 23
3.85 out of 3.85 points
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
3.85 out of 3.85 points
The ____ technology has a transmission distance of up to 10 meters.
Answer
Selected Answer:
Bluetooth
Correct Answer:
Bluetooth
Question 25
3.85 out of 3.85 points
A large amount of equipment is required to create a wireless LAN.
Answer
Selected Answer: False
Correct Answer: False
Question 26
3.85 out of 3.85 points
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
3.85 out of 3.85 points
What is another name for a NIC?
Answer
Selected Answer:
client network adapter
Correct Answer:
client network adapter
Question 2
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
The 802.11b standard can support wireless devices that are up to ____ meters apart.
Answer
Selected Answer:
115
Correct Answer:
115
Question 5
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
The radio frequency spectrum is divided into ____ different sections or bands.
Answer
Selected Answer:
450
Correct Answer:
450
Question 10
3.85 out of 3.85 points
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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3.85 out of 3.85 points
Which IEEE committee establishes standards for wireless wide area networks?
Answer
Selected Answer:
802.16
Correct Answer:
802.16
Question 12
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
De facto standards are not actually standards at all.
Answer
Selected Answer: True
Correct Answer: True
Question 16
3.85 out of 3.85 points
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
Selected Answer: False
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Correct Answer: False
Question 17
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Ultimately, who regulates standards that are developed by consortia?
Answer
Selected Answer:
the marketplace
Correct Answer:
the marketplace
Question 19
3.85 out of 3.85 points
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
Selected Answer: True
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Correct Answer: True
Question 20
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
CF cards consist of a small circuit board that contains flash memory chips and a dedicated
controller chip.
Answer
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Selected Answer: True
Correct Answer: True
Question 23
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Only one type of wireless NIC is available for laptop computers.
Answer
Selected Answer: False
Correct Answer: False
Question 1
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
Which of the following types of wave is imperceptible?
Answer
Selected Answer:
radio
Correct Answer:
radio
Question 4
3.85 out of 3.85 points
The maximum EIRP for IEEE 802.11b WLANs is ____ mW.
Answer
Selected Answer:
100
Correct Answer:
100
Question 5
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3.85 out of 3.85 points
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
3.85 out of 3.85 points
What is the shape of a Fresnel zone?
Answer
Selected Answer:
Ellipsoidal
Correct Answer:
Ellipsoidal
Question 7
3.85 out of 3.85 points
Television uses three types of modulation. The video portion uses ____.
Answer
Selected Answer:
AM
Correct Answer:
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AM
Question 8
3.85 out of 3.85 points
In a wireless transmission data travels on invisible radio waves.
Answer
Selected Answer: True
Correct Answer: True
Question 9
3.85 out of 3.85 points
Which of the following units is used to measure frequency?
Answer
Selected Answer:
hertz
Correct Answer:
hertz
Question 10
3.85 out of 3.85 points
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
Selected Answer: False
Correct Answer: False
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Question 11
3.85 out of 3.85 points
Whenever a wave completes its trip and returns back to the starting point it has finished two
cycles.
Answer
Selected Answer: False
Correct Answer: False
Question 12
3.85 out of 3.85 points
Which type of RF loss is caused by the equipment transmitting the signal?
Answer
Selected Answer:
Voltage Standing Wave Ratio
Correct Answer:
Voltage Standing Wave Ratio
Question 13
3.85 out of 3.85 points
____ modulation changes the number of waves representing one cycle.
Answer
Selected Answer:
Frequency
Correct Answer:
Frequency
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Question 14
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Highly-directional antennas are generally concave dish-shaped devices.
Answer
Selected Answer: True
Correct Answer: True
Question 16
3.85 out of 3.85 points
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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3.85 out of 3.85 points
The term ____ describes the rate of electrical flow.
Answer
Selected Answer:
current
Correct Answer:
current
Question 18
3.85 out of 3.85 points
The length of an antenna should be about ____ the wavelength.
Answer
Selected Answer:
1/4 of
Correct Answer:
1/4 of
Question 19
3.85 out of 3.85 points
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
3.85 out of 3.85 points
A ____ dipole antenna produces a flatter signal than a standard dipole antenna.
Answer
Selected Answer:
high-gain
Correct Answer:
high-gain
Question 21
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
The ASK 1 bit has a carrier signal (positive voltage) while a 0 bit has no signal (zero voltage).
Answer
Selected Answer: True
Correct Answer: True
Question 25
3.85 out of 3.85 points
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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
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ is not part of a frame.
Answer
Selected Answer:
Channel
Correct Answer:
Channel
Question 3
3.85 out of 3.85 points
DSSS uses a bit pattern called a ____ code.
Answer
Selected Answer:
chipping
Correct Answer:
chipping
Question 4
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Because wireless technology has advanced at such a rapid pace, the earliest WLANs are now
essentially obsolete.
Answer
Selected Answer: True
Correct Answer: True
Question 7
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
What is the top layer of the OSI reference model?
Answer
Selected Answer:
application
Correct Answer:
application
Question 9
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Increasing the speed of the WLAN will cause shorter delays in waiting for reflections.
Answer
Selected Answer: False
Correct Answer: False
Question 11
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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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3.85 out of 3.85 points
What is a disadvantage of narrowband transmissions?
Answer
Selected Answer:
interference from another radio signal
Correct Answer:
interference from another radio signal
Question 14
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Which system is preferred for 802.11b WLANs?
Answer
Selected Answer:
DSSS
Correct Answer:
DSSS
Question 17
3.85 out of 3.85 points
Of the 52 subchannels, 32 are used for standard transmissions and 20 are used for FEC
transmissions.
Answer
Selected Answer: False
Correct Answer: False
Question 18
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
Selected Answer: False
Correct Answer: False
Question 23
3.85 out of 3.85 points
Into which layers are WLAN features isolated by IEEE standards?
Answer
Selected Answer:
PHY and MAC
Correct Answer:
PHY and MAC
Question 24
3.85 out of 3.85 points
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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
3.85 out of 3.85 points
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
Selected Answer: True
Correct Answer: True
Question 26
3.85 out of 3.85 points
When was the concept used by FHSS technology developed?
Answer
Selected Answer:
during World War II
Correct Answer:
during World War II
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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
0 out of 3.85 points
Which of the following describes a wireless device switching from one AP to another?
Answer
Selected Answer:
roaming
Correct Answer:
handoff
Question 3
3.85 out of 3.85 points
The ____ field appears first in a management frame.
Answer
Selected Answer:
Frame control
Correct Answer:
Frame control
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Question 4
3.85 out of 3.85 points
When an ESS is installed it is desirable to configure the areas of coverage much like cells in a
cellular telephone system.
Answer
Selected Answer: True
Correct Answer: True
Question 5
3.85 out of 3.85 points
The first major function of the MAC layer involves defining procedures for a wireless device to
discover the WLAN.
Answer
Selected Answer: True
Correct Answer: True
Question 6
3.85 out of 3.85 points
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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3.85 out of 3.85 points
Why is CSMA/CD unsuitable for wireless networks?
Answer
Selected Answer:
Both A and B
Correct Answer:
Both A and B
Question 8
3.85 out of 3.85 points
CSMA/CA eliminates the possibility of collisions.
Answer
Selected Answer: False
Correct Answer: False
Question 9
3.85 out of 3.85 points
Wireless authentication involves a user logging on to the access point.
Answer
Selected Answer: False
Correct Answer: False
Question 10
3.85 out of 3.85 points
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
3.85 out of 3.85 points
The ____ field appears last in a data frame.
Answer
Selected Answer:
Frame check sequence
Correct Answer:
Frame check sequence
Question 12
3.85 out of 3.85 points
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
0 out of 3.85 points
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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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
With MobileIP, the ____ assigns the mobile computer a new (but temporary) IP number.
Answer
Selected Answer:
foreign agent
Correct Answer:
foreign agent
Question 18
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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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3.85 out of 3.85 points
A home agent is a forwarding mechanism that keeps track of where the mobile computer is
located.
Answer
Selected Answer: True
Correct Answer: True
Question 22
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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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3.85 out of 3.85 points
What is the minimum number of BSS networks required to form an ESS?
Answer
Selected Answer:
2
Correct Answer:
2
Question 25
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
Selected Answer: False
Correct Answer: False
Question 2
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ should be considered when calculating ROI.
Answer
Selected Answer:
All of the above
Correct Answer:
All of the above
Question 6
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Wireless access to network resources can improve the quality and productivity of meetings.
Answer
Selected Answer: True
Correct Answer: True
Question 8
3.85 out of 3.85 points
Early adopters of wireless LANs were sometimes called racehorses.
Answer
Selected Answer: False
Correct Answer: False
Question 9
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Establishing and staffing an internal help desk is one of the most effective means of support.
Answer
Selected Answer: True
Correct Answer: True
Question 11
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ generates low interference.
Answer
Selected Answer:
Wood
Correct Answer:
Wood
Question 14
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ generates the highest level of interference.
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Answer
Selected Answer:
Metal
Correct Answer:
Metal
Question 16
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ is considered a hard benefit.
Answer
Selected Answer:
Cost reduction
Correct Answer:
Cost reduction
Question 19
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
Intel recommends that once the ROI model is complete, larger organizations should return to
step ____.
Answer
Selected Answer:
1
Correct Answer:
1
Question 22
3.85 out of 3.85 points
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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3.85 out of 3.85 points
What is the single most important tool in any business?
Answer
Selected Answer:
personal networked computer
Correct Answer:
personal networked computer
Question 24
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
Selected Answer: True
Correct Answer: True
Question 26
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3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
What is a consideration when conducting an outdoor site survey?
Answer
Selected Answer:
All of the above
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3.85 out of 3.85 points
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
3.85 out of 3.85 points
What is the most basic tool or component involved in a site survey?
Answer
Selected Answer:
access point
Correct Answer:
access point
Question 10
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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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Selected Answer: False
Correct Answer: False
Question 14
3.85 out of 3.85 points
The industry-standard form for site survey documentation is IEEE 802.11D.
Answer
Selected Answer: False
Correct Answer: False
Question 15
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
What are the parts of a site survey report?
Answer
Selected Answer:
narrative section, graphical section
Correct Answer:
narrative section, graphical section
Question 19
3.85 out of 3.85 points
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
3.85 out of 3.85 points
What type of AP antenna is most commonly used in a site survey?
Answer
Selected Answer:
omnidirectional
Correct Answer:
omnidirectional
Question 21
3.85 out of 3.85 points
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
Selected Answer: True
Correct Answer: True
Question 22
3.85 out of 3.85 points
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
3.85 out of 3.85 points
The most common type of antenna for a WLAN is an semi-directional antenna, also known as a
dipole antenna.
Answer
Selected Answer: False
Correct Answer: False
Question 24
3.85 out of 3.85 points
A drawback of spectrum analyzers is that the information is displayed in graphical form and not
as raw data.
Answer
Selected Answer: True
Correct Answer: True
Question 25
3.85 out of 3.85 points
How are business requirements for a WLAN obtained?
Answer
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Selected Answer:
interviewing management
Correct Answer:
interviewing management
Question 26
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ is another name for open systems authentication.
Answer
Selected Answer:
SSID filtering
Correct Answer:
SSID filtering
Question 2
3.85 out of 3.85 points
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Which characteristic of information is guarded by access control?
Answer
Selected Answer:
availability
Correct Answer:
availability
Question 3
3.85 out of 3.85 points
In a 64-bit packet sent using WEP, how many bits are actually encrypted?
Answer
Selected Answer:
40
Correct Answer:
40
Question 4
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
In WEP, the CRC generates a(n) ____ based on the contents of the text.
Answer
Selected Answer:
checksum
Correct Answer:
checksum
Question 7
3.85 out of 3.85 points
A ____ attack on WEP involves viewing collisions to derive plaintext values.
Answer
Selected Answer:
keystream
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Correct Answer:
keystream
Question 8
3.85 out of 3.85 points
Information security involves more than protecting the information itself.
Answer
Selected Answer: True
Correct Answer: True
Question 9
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
A ____ is not malicious but often seeks to expose security flaws.
Answer
Selected Answer:
hacker
Correct Answer:
hacker
Question 12
3.85 out of 3.85 points
Which aspect of information security does WEP protect?
Answer
Selected Answer:
confidentiality
Correct Answer:
confidentiality
Question 13
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
Employees pose only a small threat to networks.
Answer
Selected Answer: False
Correct Answer: False
Question 19
3.85 out of 3.85 points
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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
3.85 out of 3.85 points
According to the IEEE 802.11 cryptography objectives, how strong should WEP be?
Answer
Selected Answer:
reasonably
Correct Answer:
reasonably
Question 21
3.85 out of 3.85 points
Cryptography is a new invention of the 20th Century.
Answer
Selected Answer: False
Correct Answer: False
Question 22
3.85 out of 3.85 points
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
3.85 out of 3.85 points
MAC address filtering ____.
Answer
Selected Answer:
requires pre-approved authentication
Correct Answer:
requires pre-approved authentication
Question 24
3.85 out of 3.85 points
Wireless DoS attacks are exactly the same as wired DoS attacks.
Answer
Selected Answer: False
Correct Answer: False
Question 25
3.85 out of 3.85 points
____ 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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
The ____ method of encryption is used in a personal security model.
Answer
Selected Answer:
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TKIP
Correct Answer:
TKIP
Question 2
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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WEP2 attempted to overcome the limitations of WEP by adding two new security
enhancements.
Answer
Selected Answer: True
Correct Answer: True
Question 5
3.85 out of 3.85 points
____ replaces CRC in WPA.
Answer
Selected Answer:
MIC
Correct Answer:
MIC
Question 6
3.85 out of 3.85 points
The 802.11i standard addresses both ____.
Answer
Selected Answer:
encryption and authentication
Correct Answer:
encryption and authentication
Question 7
3.85 out of 3.85 points
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The block cipher used in 802.11i is the Data Encryption Standard (DES).
Answer
Selected Answer: False
Correct Answer: False
Question 16
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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0 out of 3.85 points
Pre-shared key (PSK) authentication uses a passphrase that is automatically generated to
generate the encryption key.
Answer
Selected Answer: True
Correct Answer: False
Question 22
3.85 out of 3.85 points
Encryption under the WPA2 personal security model is accomplished by using the block cipher
____.
Answer
Selected Answer:
AES
Correct Answer:
AES
Question 23
3.85 out of 3.85 points
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
0 out of 3.85 points
WPA authentication can be accomplished by using either IEEE 802.1x or pre-shared key (PSK)
technology.
Answer
Selected Answer: False
Correct Answer: True
Question 25
3.85 out of 3.85 points
What is the first step in implementing an interim security model?
Answer
Selected Answer:
shared key authentication
Correct Answer:
shared key authentication
Question 26
3.85 out of 3.85 points
A virtual private network (VPN) uses a public, unsecured network as if it were a private, secured
network.
Answer
Selected Answer: True
Correct Answer: True
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What is the last step in RF site tuning?
Answer
Selected Answer:
documenting changes
Correct Answer:
documenting changes
Question 2
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Antenna adjustment may require the existing antennas to be reoriented or placed on a pole or
mast for better transmission and reception.
Answer
Selected Answer: True
Correct Answer: True
Question 4
3.85 out of 3.85 points
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3.85 out of 3.85 points
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
3.85 out of 3.85 points
The current version of SNMP (____) addresses security and remote configuration.
Answer
Selected Answer:
v3
Correct Answer:
v3
Question 12
3.85 out of 3.85 points
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
3.85 out of 3.85 points
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
3.85 out of 3.85 points
A ____ antenna is most typically used on a WLAN.
Answer
Selected Answer:
rod
Correct Answer:
rod
Question 15
3.85 out of 3.85 points
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
3.85 out of 3.85 points
Which type of RF loss is caused by the equipment itself, not external objects?
Answer
Selected Answer:
Voltage Standing Wave Ratio
Correct Answer:
Voltage Standing Wave Ratio
Question 20
0 out of 3.85 points
____ is a nonvolatile storage chip used in computers and other devices.
Answer
Selected Answer:
Firmware
Correct Answer:
EEPROM
Question 21
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3.85 out of 3.85 points
Almost all WLAN vendors provide utilities to assist in monitoring the wireless network.
Answer
Selected Answer: True
Correct Answer: True
Question 22
3.85 out of 3.85 points
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
3.85 out of 3.85 points
____ 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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