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In ______ CSMA protocol, after the station finds the line idle, it sends or refrains from sending based on the outcome of a random number generated.

  1. Non-persistent
  2. 0- persistent
  3. 1- persistent
  4. p- persistent
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Answer : P-Persistent

p-Persistent CSMA Protocol:

1. If the medium is idle, transmit with probability p, and delay for one time unit with probability (1 - p) 
2. If the medium is busy, continue to listen until medium becomes idle, then go to Step 1 
3. If transmission is delayed by one time unit, continue with Step 1

Reference : P-persistent 

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