802.11a supports ________ nonoverlapping channels.
A) 1
B) 3
C) 7
D) More than 10
Correct Answer:
Verified
Q20: The frequency spectrum extends _.
A)into the megahertz
Q21: In the Shannon Equation,C is the _.
A)actual
Q23: In 802.11,channel bandwidth usually is _.
A)20 GHz
B)40
Q24: If a radio transmission is easily blocked
Q27: To transmit very rapidly in RADIO,you need
Q28: Which unlicensed band provides greater propagation distance
Q29: The 2.4 GHz band supports _ nonoverlapping
Q30: Channels with wide bandwidths are called _
Q40: WLANs normally use _.
A)licensed bands
B)unlicensed bands
Q46: What happens if two nearby access points
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