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A channel extends from 55 MHz to 60 MHz.Its bandwidth is ________.


A) 60 MHz
B) 55 MHz
C) 65 MHz
D) none of the above

E) All of the above
F) B) and C)

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Which of the following only operates in the 5 GHz band?


A) 802.11b
B) 802.11ac
C) 802.11g
D) 802.11n

E) C) and D)
F) A) and D)

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The 2.4 GHz band supports ________ possible non-overlapping 20 MHz channel(s) .


A) 1
B) 3
C) 7
D) 11

E) B) and D)
F) All of the above

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Channels with wide bandwidths are called ________ channels.


A) multimode
B) full-duplex
C) broadband
D) parallel

E) B) and D)
F) A) and B)

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Access points take ________ from wireless devices and send them on to devices on the wired LAN.They also do the converse.


A) packets
B) frames
C) both A and B
D) neither A nor B

E) B) and D)
F) B) and C)

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Wi-Fi Standards come from the ________ Working Group.


A) 802.1
B) 802.3
C) 802.11
D) 802.1X

E) A) and B)
F) A) and C)

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Which of the following uses OFDM?


A) 802.11ac
B) 802.11n
C) both A and B
D) neither A nor B

E) A) and D)
F) B) and D)

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Wireless radio transmission speed is usually measured in terms of ________.


A) wavelength
B) frequency
C) amplitude
D) wetness

E) None of the above
F) A) and B)

Correct Answer

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In the 5 GHz band,how many channels can you have with 802.11ac with 80 GHz channels?


A) 1
B) 6
C) 12
D) 24

E) C) and D)
F) B) and C)

Correct Answer

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