Question: Consider a reliable data transfer protocol that uses only negative acknowledgement. Suppose the sender sends data only infrequently. Would a NAK-only protocol be preferable to

Consider a reliable data transfer protocol that uses only negative acknowledgement. Suppose the sender sends data only infrequently. Would a NAK-only protocol be preferable to protocol that uses ACKs? Why? Now suppose the sender has a lot of data to send and the end-to- end connection experiences few losses. In this second case, would a NAK-only protocol be preferable to a protocol that uses ACKs? Why?

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