Consider a reliable data transfer protocol that uses only negative acknowledgements (NAKS). (a) Suppose the sender sends data only infrequently. Would a NAK-only protocol be prefer- able to a protocol that uses ACKS? Explain. (b) Now suppose the sender has a lot of data to send and the end-to-end connection expe- riences few losses. In this case, would a NAK-only protocol be preferable to a protocol that uses ACKS? Explain.

Consider a reliable data transfer protocol that uses only negative acknowledgements (NAKS). (a) Suppose the sender sends data only infrequently. Would a NAK-only protocol be prefer- able to a protocol that uses ACKS? Explain. (b) Now suppose the sender has a lot of data to send and the end-to-end connection expe- riences few losses. In this case, would a NAK-only protocol be preferable to a protocol that uses ACKS? Explain.

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

Consider a reliable data transfer protocol that uses only negative acknowledgements (NAKS).
(a) Suppose the sender sends data only infrequently. Would a NAK-only protocol be prefer-
able to a protocol that uses ACKS? Explain.
(b) Now suppose the sender has a lot of data to send and the end-to-end connection expe-
riences few losses. In this case, would a NAK-only protocol be preferable to a protocol
that uses ACKS? Explain.

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