CSMA/CA+ACK usually is ________.
A) required
B) optional
Correct Answer:
Verified
Q46: In the 5 GHz band,how many channels
Q70: CSMA/CA+ACK is reliable.
Q72: Which of the following can bring gigabit
Q73: For which standard is 300 Mbps a
Q74: Which of the following is more efficient?
A)CSMA/CA+ACK
B)RTS/CTS
C)Both
Q76: Wider channel bandwidth _.
A)decreases transmission speed
B)allows more
Q77: Which of the following uses OFDM?
A)802.11g
B)802.11ac
C)both A
Q78: Which of the following can operate in
Q79: CSMA/CA+ACK is _.
Q80: Which of the following is usually optional
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