a) The sender in the Stop and Wait protocol waits for an ACK before delivering the following packet. But what if an ACK is lost in transit and never reaches the sender? In that scenario, what should the sender do?b) A sender process sends 100 packets to a receiver process. Out of 100 packets, 80 make it to their destination, while 20 are lost in the network. How many ACKs will the receiver send to the sender when using:ACK (acceptable/normal ACK) • NACK (not acceptable)c) Why do we require a length field in the UDP header since the length of the UDP header is always the same (i.e. 8 bytes)?

Given that: a) The sender in the Stop and Wait protocol waits for an ACK before delivering the…

Answered: a) The sender in the Stop and Wait…

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ISBN:9780357108291

Author:ANDREWS, Jean.

Publisher:ANDREWS, Jean.

Chapter8: Network Infrastructure And Troubleshooting

Section: Chapter Questions

Problem 8TC

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a) The sender in the Stop and Wait protocol waits for an ACK before delivering the following packet. But what if an ACK is lost in transit and never reaches the sender? In that scenario, what should the sender do?
b) A sender process sends 100 packets to a receiver process. Out of 100 packets, 80 make it to their destination, while 20 are lost in the network. How many ACKs will the receiver send to the sender when using:

ACK (acceptable/normal ACK) • NACK (not acceptable)

c) Why do we require a length field in the UDP header since the length of the UDP header is always the same (i.e. 8 bytes)?

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