Which of the following only operates in the 5 GHz band?
A) 802.11b
B) 802.11ac
C) 802.11g
D) 802.11n
Correct Answer:
Verified
Q50: CSMA/CA+ACK usually is _.
A)mandatory
B)optional
C)not important
D)efficient
Q54: Access points in the same ESS communicate
Q56: In 802.11g,channel bandwidth usually is _.
A)20 GHz
B)40
Q57: What happens if two nearby access points
Q58: The standard for roaming among access points
Q60: There is an access point that serves
Q68: Today,Wi-Fi sales are dominated by _.
A) 802.11a
B)
Q70: In _,when a wireless host wishes to
Q71: Media access control governs transmission by _.
A)
Q76: Which of the following is more efficient
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