Question 1

Which IEEE standard supports QoS and enables prioritization of frames in DCF?

Accepted Answer

A)  802.11f 
B)  802.11e 
C)  802.11d 
D)  802.11c 
A)  802.11f 
B)  802.11e 
C)  802.11d 
D)  802.11c

Question 2

What is MIMO technology? Include beamforming and spatial multiplexing in your answer.

Accepted Answer

Multiple-input and multiple-output (MIMO

Question 3

What is the channel configuration of 802.11n and how does it help achieve higher data rates?

Accepted Answer

One of the ways 802.11n is able to achie

Question 4

What is the purpose of a guard band?

Accepted Answer

A)  help prevent adjacent channel interference 
B)  help prevent co-channel interference 
C)  helps prevent outside EM interference 
D)  helps prevent intersymbol interference 
A)  help prevent adjacent channel interference 
B)  help prevent co-channel interference 
C)  helps prevent outside EM interference 
D)  helps prevent intersymbol interference

Question 5

The 4-bit Rate field in an 802.11a PLCP frame specifies the speed at which the Data field will be transmitted.

Accepted Answer

A) True 
 B)False

Question 6

MATCHING
-caused when the beginning of a symbol arrives at the receiver antenna while multipath reflections from the previous symbol are still reaching the antenna

Accepted Answer

A) co-channel interference 
B) CTS-to-self 
C) guard band 
D) intersymbol interference 
E) pre-shared key
F)reduced interframe space
G)spatial multiplexing
H)symbol
I)TKIP
J)wireless controller 
A) co-channel interference 
B) CTS-to-self 
C) guard band 
D) intersymbol interference 
E) pre-shared key
F)reduced interframe space
G)spatial multiplexing
H)symbol
I)TKIP
J)wireless controller

Question 7

What do 802.11n devices employ to direct a transmission back to the device from which a frame was received?

Accepted Answer

A)  spatial multiplexing 
B)  beamforming 
C)  MIMO 
D)  antenna diversity 
A)  spatial multiplexing 
B)  beamforming 
C)  MIMO 
D)  antenna diversity

Question 8

MATCHING
-a coordination method used by 802.11g devices that prevents 802.11 and 802.11b devices that do not "understand" OFDM from attempting to initiate a transmission

Accepted Answer

A) co-channel interference 
B) CTS-to-self 
C) guard band 
D) intersymbol interference 
E) pre-shared key
F)reduced interframe space
G)spatial multiplexing
H)symbol
I)TKIP
J)wireless controller 
A) co-channel interference 
B) CTS-to-self 
C) guard band 
D) intersymbol interference 
E) pre-shared key
F)reduced interframe space
G)spatial multiplexing
H)symbol
I)TKIP
J)wireless controller

Question 9

How many non-overlapping channels are available in an 802.11g WLAN?

Accepted Answer

A)  23 
B)  11 
C)  3 
D)  8 
A)  23 
B)  11 
C)  3 
D)  8

Which IEEE standard supports QoS and enables prioritization of frames in DCF?

What is MIMO technology? Include beamforming and spatial multiplexing in your answer.

What is the channel configuration of 802.11n and how does it help achieve higher data rates?

What is the purpose of a guard band?

The 4-bit Rate field in an 802.11a PLCP frame specifies the speed at which the Data field will be transmitted.

MATCHING -caused when the beginning of a symbol arrives at the receiver antenna while multipath reflections from the previous symbol are still reaching the antenna

What do 802.11n devices employ to direct a transmission back to the device from which a frame was received?

MATCHING -a coordination method used by 802.11g devices that prevents 802.11 and 802.11b devices that do not "understand" OFDM from attempting to initiate a transmission

How many non-overlapping channels are available in an 802.11g WLAN?

Introduction to Wireless Communications

Wireless Data Transmission

Radio Frequency Communications

How Antennas Work

Wireless Personal Area Networks

High-Rate Wireless Personal Area Networks

Low-Speed Wireless Local Area Networks

Wireless Metropolitan Area Networks

Wireless Wide Area Networks

Radio Frequency Identification and Near-Field Communication

Wireless Communications in Business

Filters

Exam 8: High-Speed Wlans and Wlan Security

Which IEEE standard supports QoS and enables prioritization of frames in DCF?

What is MIMO technology? Include beamforming and spatial multiplexing in your answer.

What is the channel configuration of 802.11n and how does it help achieve higher data rates?

What is the purpose of a guard band?

The 4-bit Rate field in an 802.11a PLCP frame specifies the speed at which the Data field will be transmitted.

MATCHING -caused when the beginning of a symbol arrives at the receiver antenna while multipath reflections from the previous symbol are still reaching the antenna

What do 802.11n devices employ to direct a transmission back to the device from which a frame was received?

MATCHING -a coordination method used by 802.11g devices that prevents 802.11 and 802.11b devices that do not "understand" OFDM from attempting to initiate a transmission

How many non-overlapping channels are available in an 802.11g WLAN?

Introduction to Wireless Communications

Wireless Data Transmission

Radio Frequency Communications

How Antennas Work

Wireless Personal Area Networks

High-Rate Wireless Personal Area Networks

Low-Speed Wireless Local Area Networks

Wireless Metropolitan Area Networks

Wireless Wide Area Networks

Radio Frequency Identification and Near-Field Communication

Wireless Communications in Business

Filters