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In Go-Back-N window, when the timer of the packet times out, several packets have to be resent even some may have arrived safe. Whereas in Selective Repeat window, the sender resends ___________(a) Packet which are not lost(b) Only those packets which are lost or corrupted(c) Packet from starting(d) All the packets |
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Answer» Right option is (b) Only those packets which are lost or corrupted Explanation: In Selective Repeat, the sender side uses a searching algorithm to find the packets which need to be retransmitted based on the negative acknowledgements received and then resends only those packets thus saving bandwidth. |
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