Q.

Most packet switches use this principle

A. stop and wait
B. store and forward
C. store and wait
D. stop and forward
Answer» B. store and forward
Explanation: the packet switch will not transmit the first bit to outbound link until it receives the entire packet. if the entire packet is not received and the time-out period expires, the packet switch will inform the sender to resend the part of packet or the entire packet based on the algorithm being used.
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