A system uses the Selective repeat ARQ and Go back N ARQ Protocols with a window of size 4 packets over a 1Mbps link If each packet carries 1000 bits of data The distance between the sender and receiver is 5000 Km and the propagation speed is 2 x 108 m Ignore acknowledgement transmission, waiting, and processing delays (1 point) How many timers are needed to design the selective repeat ARQ protocol How many timers are needed to design the Go back N ARQ protocol (2 points) Assuming no data or control frame is lost or damaged, how long does it take to send 1 million bits of data using Go back N 3 (2 points) Using selective repeat and assuming 10 of the transmission windows have one lost or damaged frame, how long does it take to send 1 million bits of data 4 Repeat no 3 above using Go back N assuming timeout 105ms

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Question: A system uses the Selective repeat ARQ and Go-back-N ARQ Protocols with a window of size 4 packets over a 1Mbps link. If each packet

A system uses the Selective repeat ARQ and Go-back-N ARQ Protocols with a window of size 4 packets over a 1Mbps link. If each packet carries 1000 bits of data. The distance between the sender and receiver is 5000 Km and the propagation speed is 2 x 108 m. Ignore acknowledgement transmission, waiting, and processing delays.

(1 point) How many timers are needed to design the selective repeat ARQ protocol? How many timers are needed to design the Go-back-N ARQ protocol?
(2 points) Assuming no data or control frame is lost or damaged, how long does it take to send 1 million bits of data using Go-back-N?
3. (2 points) Using selective repeat and assuming 10% of the transmission windows have one lost or damaged frame, how long does it take to send 1 million bits of data?
4. Repeat no 3 above using Go-back-N assuming timeout = 105ms.

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