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Computer Networks
Multiple Access Links Protocols
Q
Why station need to wait random amount of time for re-transmission of the frame after collision in pure aloha?
AA. To prevent other stations
BB. To avoid more collisions
CC. To detect other collisions
DD. To get acknowledgment from the receiver
Correct Answer:
B. B. To avoid more collisions
Explanation:
Collision includes two more stations, if those stations again re-transmit the frames at a time; it causes collision again. Back-off time is to avoid this collision by making the stations to wait for some random times.
