Question: Exercise 1 1. Which service(s) does a Go-back-N protocol offer? 2. What are the differences between GO-back-N, selective repeat and stop and wait are there?

Exercise 1 1. Which service(s) does a Go-back-N protocol offer? 2. What are the differences between GO-back-N, selective repeat and stop and wait are there? 3. In which layer(s) of the TCP/IP model might these protocol be used? 4. In the following scenario, 9 distinct data segments are sent from A to host B. Host B send acknowledgement segments only. Assume that a Go-back-4 protocol is used. The sequence numbers are from 0 to 7 . Fill with appropriate - Segment sequence numbers. - Acknowledgement numbers. - The sender window. - Receiver window

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