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What is the primary difference between Go-Back-N and Selective Repeat ARQ in terms of receiver behaviour on packet loss?
- AGo-Back-N buffers out-of-order packets; Selective Repeat discards them
- BSelective Repeat buffers out-of-order packets and requests retransmission of only the lost packet; Go-Back-N discards out-of-order packets and requires retransmission from the lost packet onward
- CBoth behave identically at the receiver
- DGo-Back-N is used only for wireless networks
Correct answer: B