Computer Networks Question

You are given a 1000 mile link with a 1 Gb/s data rate between a sender and receiver. All data is sent in 5000 byte packets. For the Stop-and-Wait (SAW) protocol determine the link utilization assuming that 1) the sender always has data to send, 2) the overhead from processing and Ack transmission time is neglible, 3) the overhead from packet headers is negligible, and the link is error-free (no packets are lost). a) Determine the link utilization for the above described scenario. b) Change the above original scenario to be a 1000 foot link, determine the link utilization. c) Change the above original scenario (the 1000 mile link case) to use a Sliding Window protocol with windows size 10 packets, determine the link Utilization. d) For the above original scenario, what is the window size needed for a Sliding Window protocol to achieve 100% link utilization?