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Question 69 - JN0-451 discussion
What do 802.11 stations perform to help avoid collisions on the WLAN medium?
A.
802.11 stations detect collisions and set a back-off timer.
B.
Listen to verify that the medium is free before transmitting.
C.
Stations only transmit when polled by the access point.
D.
Transmit on a fixed schedule.
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