Computer Networks

1:

In which ARQ, when a NAK is received, all frame sent since the last frame acknowledged an retransmitted

A.

stop-and-wait

B.

go-back-n

C.

selective-reject

D.

both (a) and (b) 

 

Answer : B

Explanation :

In the case of go-back-n protocol, when a NAK is received, all the frames sent since the last frame acknowledged are retransmitted. Go ----> Back ----> n.

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Option: A

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