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12.01
You need to install wireless Internet access in an open warehouse environment. After installing
the equipment the technician notices varying signal strengths throughout the warehouse.
A. Turn on broadcast key rotation
B. Change the encryption method used on all the AP’s
C. Change the antenna placement
D. Use channel bonding
E. Use channel shaping

You need to install wireless Internet access in an open warehouse environment. After installing
the equipment the technician notices varying signal strengths throughout the warehouse.
A. Turn on broadcast key rotation
B. Change the encryption method used on all the AP’s
C. Change the antenna placement
D. Use channel bonding
E. Use channel shaping


12.02
What is the frequency range of the IEEE 802.11a standard?
A. 2.4Gbps
B. 5Gbps
C. 2.4GHz
D. 5GHz

What is the frequency range of the IEEE 802.11a standard?
A. 2.4Gbps
B. 5Gbps
C. 2.4GHz
D. 5GHz


12.03
What is the frequency range of the IEEE 802.11g standard?
A. 2.4Gbps
B. 5Gbps
C. 2.4GHz
D. 5GHz

What is the frequency range of the IEEE 802.11g standard?
A. 2.4Gbps
B. 5Gbps
C. 2.4GHz (Both 802.11b and 802.11g broadcast at 2.4GHz)
D. 5GHz


12.04
Which devices can interfere with the operation of a wireless network because they operate
on similar frequencies? (Choose two.)
A. Copier
B. Microwave oven
C. Toaster
D. Cordless phone
E. IP phone
F. AM radio

Which devices can interfere with the operation of a wireless network because they operate
on similar frequencies? (Choose two.)
A. Copier
B. Microwave oven
C. Toaster
D. Cordless phone
E. IP phone
F. AM radio


12.05
Which wireless standard allows you to channel bond to increase bandwidth and uses both
the 2.4Ghz and 5Ghz frequencies?
A. 802.11b
B. 802.11g
C. 802.11a
D. 802.11n

Which wireless standard allows you to channel bond to increase bandwidth and uses both
the 2.4Ghz and 5Ghz frequencies?
A. 802.11b
B. 802.11g
C. 802.11a
D. 802.11n


12.06
How many non-overlapping channels are available with 802.11b?
A. 3
B. 12
C. 23
D. 40

How many non-overlapping channels are available with 802.11b?
A. 3
B. 12
C. 23
D. 40


12.07
How many non-overlapping channels are available with 802.11a?
A. 3
B. 12
C. 23
D. 40

How many non-overlapping channels are available with 802.11a?
A. 3
B. 12
C. 23
D. 40


12.08
What is the maximum data rate for the 802.11a standard?
A. 6Mbps
B. 11Mbps
C. 22Mbps
D. 54Mbps

What is the maximum data rate for the 802.11a standard?
A. 6Mbps
B. 11Mbps
C. 22Mbps
D. 54Mbps


12.09
You need to install wireless on multiple floors of a large building and maintenance area.
What is your first concern before installing the AP’s?
A. Authentication
B. Encryption
C. Channel Overlap
D. AP configuration

You need to install wireless on multiple floors of a large building and maintenance area.
What is your first concern before installing the AP’s?
A. Authentication
B. Encryption
C. Channel Overlap
D. AP configuration


12.10
What is the maximum data rate for the 802.11b standard?
A. 6Mbps
B. 11Mbps
C. 22Mbps
D. 54Mbps

What is the maximum data rate for the 802.11b standard?
A. 6Mbps
B. 11Mbps
C. 22Mbps
D. 54Mbps


12.11
You connect a new host to your companies wireless network. The host is set to receives a
DHCP address and the WEP key is entered correctly, however, the host cannot connect to
the network. What can the problem be?
A. DNS is not configured on the host
B. MAC filtering is enabled on the AP
C. The network has run out of wireless connections
D. The host is enabled to run 802.11b and 802.11g

You connect a new host to your companies wireless network. The host is set to receives a
DHCP address and the WEP key is entered correctly, however, the host cannot connect to
the network. What can the problem be?
A. DNS is not configured on the host
B. MAC filtering is enabled on the AP
C. The network has run out of wireless connections
D. The host is enabled to run 802.11b and 802.11g


12.12
Which is the highest encryption that WPA2 can use?
A. AES-CCMP
B. PPK via IV
C. PSK
D. TKIP/MIC

Which is the highest encryption that WPA2 can use?
A. AES-CCMP
B. PPK via IV
C. PSK
D. TKIP/MIC


12.13
Which additional configuration step is necessary in order to connect to an access point that
has SSID broadcasting disabled?
A. Set the SSID value in the client software to public.
B. Configure open authentication on the AP and the client.
C. Set the SSID value on the client to the SSID configured on the AP.
D. Configure MAC address filtering to permit the client to connect to the AP.

Which additional configuration step is necessary in order to connect to an access point that
has SSID broadcasting disabled?
A. Set the SSID value in the client software to public.
B. Configure open authentication on the AP and the client.
C. Set the SSID value on the client to the SSID configured on the AP.
D. Configure MAC address filtering to permit the client to connect to the AP.


12.14
Which spread-spectrum technology does the 802.11b standard define for operation?
A. IR
B. DSSS
C. FHSS
D. DSSS and FHSS
E. IR, FHSS, and DSSS

Which spread-spectrum technology does the 802.11b standard define for operation?
A. IR
B. DSSS
C. FHSS
D. DSSS and FHSS
E. IR, FHSS, and DSSS


12.15
Which wireless LAN design ensures that a mobile wireless client will not lose connectivity
when moving from one access point to another?
A. Using adapters and access points manufactured by the same company
B. Overlapping the wireless cell coverage by at least 10%
C. Configuring all access points to use the same channel
D. Utilizing MAC address filtering to allow the client MAC address to authenticate with
the surrounding APs

Which wireless LAN design ensures that a mobile wireless client will not lose connectivity
when moving from one access point to another?
A. Using adapters and access points manufactured by the same company
B. Overlapping the wireless cell coverage by at least 10%
C. Configuring all access points to use the same channel
D. Utilizing MAC address filtering to allow the client MAC address to authenticate with
the surrounding APs


12.16
You have installed a point-to-point connection using wireless bridges and omni-directional
antennas between two buildings. The throughput is low. What can you do to improve the link?
A. Replace the bridges with AP’s
B. Replace the omni-directional antennas with Yagi’s
C. Configure 802.11a on the links
D. Install amps to boost the signal

You have installed a point-to-point connection using wireless bridges and omni-directional
antennas between two buildings. The throughput is low. What can you do to improve the link?
A. Replace the bridges with AP’s
B. Replace the omni-directional antennas with Yagi’s
C. Configure 802.11a on the links
D. Install amps to boost the signal


12.17
What does Extended Service Set ID mean (ESS)?
A. That you have more than one access point, and they are in the same SSID connected by
a distribution system
B. That you have more than one access point, and they are in separate SSIDs connected
by a distribution system
C. That you have multiple access points, but they are placed physically in different buildings
D. That you have multiple access points, but one is a repeater access point

What does Extended Service Set ID mean (ESS)?
A. That you have more than one access point, and they are in the same SSID connected by a distribution system
B. That you have more than one access point, and they are in separate SSIDs connected
by a distribution system
C. That you have multiple access points, but they are placed physically in different buildings
D. That you have multiple access points, but one is a repeater access point


12.18
What is one reason that WPA encryption is preferred over WEP?
A. A WPA key is longer and requires more special characters than the WEP key.
B. The access point and the client are manually configured with different WPA key values.
C. WPA key values remain the same until the client configuration is changed.
D. The values of WPA keys can change dynamically while the system is used.

What is one reason that WPA encryption is preferred over WEP?
A. A WPA key is longer and requires more special characters than the WEP key.
B. The access point and the client are manually configured with different WPA key values.
C. WPA key values remain the same until the client configuration is changed.
D. The values of WPA keys can change dynamically while the system is used.


12.19
How wide are the channels used in 802.11n in order to gain the large bandwidth that the
specification provides?
A. 22MHz
B. 20Mhz
C. 40Mhz
D. 100Mhz

How wide are the channels used in 802.11n in order to gain the large bandwidth that the
specification provides?
A. 22MHz
B. 20Mhz
C. 40Mhz
D. 100Mhz


12.20
802.11n uses MIMO. How does this optimize throughput to gain the high speed advantage
that 802.11n provides?
A. By specifying an acknowledgment of each and every frame, 802.11n provides better
overhead.
B. Several frames are sent by several antennae over several paths and are then recombined
by another set of antennae.
C. One frame at a time is sent, but faster than in 802.11g because multiple antennas are
used (multiple-in, multiple-out).
D. MIMO packs smaller packets into a single unit, which improves throughput.

802.11n uses MIMO. How does this optimize throughput to gain the high speed advantage
that 802.11n provides?
A. By specifying an acknowledgment of each and every frame, 802.11n provides better
overhead.
B. Several frames are sent by several antennae over several paths and are then recombined
by another set of antennae.
C. One frame at a time is sent, but faster than in 802.11g because multiple antennas are
used (multiple-in, multiple-out).
D. MIMO packs smaller packets into a single unit, which improves throughput.



12.27
APs come set up with what type of security enabled by default?

None


12.28
Why would we use WPA instead of basic WEP?

The values of WPA keys can change dynamically while the system is used.


12.29
Which IEEE committee has been sanctioned by WPA and is called WPA 2?

The IEEE 802.11i standard has been sanctioned by WPA and is called WPA version 2.


12.30
The IEEE 802.11b/g basic standard has how many non-overlapping channels?

Three (1, 6 and 11)


12.101
Provide the missing information.

Wireless Standard: ?
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors


12.102
Provide the missing information.

Wireless Standard: 802.11a
Frequency: ?
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors


12.103
Provide the missing information.

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: ?
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors


12.104
Provide the missing information.

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: ?
Range: 35 m indoors/ 120 outdoors

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors


12.105
Provide the missing information.

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: ?

Wireless Standard: 802.11a
Frequency: 5 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM
Range: 35 m indoors/ 120 outdoors


12.111
Provide the missing information.

Wireless Standard: ?
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: s32 m indoors/ 140 m outdoor

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: 32 m indoors/ 140 m outdoors


12.112
Provide the missing information.

Wireless Standard: 802.11b
Frequency: ?
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: 32 m indoors/ 140 m outdoors

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: 32 m indoors/ 140 m outdoors

12.113
Provide the missing information.

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: ?
Transmission Method: DSSS
Range: 32 m indoors/ 140 m outdoors

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: 32 m indoors/ 140 m outdoors

12.114
Provide the missing information.

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: ?
Range: 32 m indoors/ 140 m outdoors

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: 32 m indoors/ 140 m outdoors

12.115
Provide the missing information.

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: ?

Wireless Standard: 802.11b
Frequency: 2.4 GHz
Maximum Data Rate: 11 Mbps
Transmission Method: DSSS
Range: 32 m indoors/ 140 m outdoors


12.121
Provide the missing information.

Wireless Standard: ?
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors


12.122
Provide the missing information.

Wireless Standard: 802.11g
Frequency: ?
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors


12.123
Provide the missing information.

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: ?
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors


12.124
Provide the missing information.

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: ?
Range: 32 m indoors/ 140 m outdoors

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors


12.125
Provide the missing information.

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: ?

Wireless Standard: 802.11g
Frequency: 2.4 GHz
Maximum Data Rate: 54 Mbps
Transmission Method: OFDM or DSSS
Range: 32 m indoors/ 140 m outdoors


12.131
Provide the missing information.

Wireless Standard: ?
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.132
Provide the missing information.

Wireless Standard: 802.11n
Frequency: ?
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.133
Provide the missing information.

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: ?
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.134
Provide the missing information.

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: ?
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.135
Provide the missing information.

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: ?

Wireless Standard: 802.11n
Frequency: 2.4 or 5 GHz (or both)
Maximum Data Rate: >300 Mbps (with channel bonding)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.141
Provide the missing information.

Wireless Standard: ?
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.142
Provide the missing information.

Wireless Standard: 802.11ac
Frequency: ?
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.143
Provide the missing information.

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: ?
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.144
Provide the missing information.

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: ?
Range: 70 m indoors/ 250 m outdoors

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors


12.145
Provide the missing information.

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: ?

Wireless Standard: 802.11ac
Frequency: 5 GHz
Maximum Data Rate: >6 Gbps (with MU-MIMO and multiple antennas)
Transmission Method: OFDM
Range: 70 m indoors/ 250 m outdoors