When a receiver transmits an ACK,________.
A) it must use CSMA/CA
B) it must use CSMA
C) in must use CA
D) it must transmit immediately
Correct Answer:
Verified
Q59: Spread spectrum transmission is used in WLANs
Q60: A wireless host sends a packet to
Q61: In CSMA/CD+ACK,when a wireless NIC wishes to
Q62: In CSMA/CA,CS means _.
A) cancel sending
B) counter-source
C)
Q63: MIMO _.
A) bonds two or more channels
Q65: When does it make sense to use
Q66: Which is one of the only two
Q67: MIMO _.
A) increases throughput
B) lowers propagation distance
C)
Q68: Today,Wi-Fi sales are dominated by _.
A) 802.11a
B)
Q69: _ is among the most widely used
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