Question: Assume that TCP implements an extension that allows window sizes much larger than 64 kB. Suppose that you are using this extended TCP over a

Assume that TCP implements an extension that allows window sizes much larger than 64 kB. Suppose that you are using this extended TCP over a 1-Gbps link with a latency of 100 ms to transfer a 10-MB file, and the TCP receive window is 1 MB. TCP sends 1-kB packets

(assuming no congestion and no lost packets).

(a) How many RTTs does it take until slow start opens the send window to 1 MB?

(b) How many RTTs does it take to send the file?

(c) If the time to send the file is given by the number of required RTTs multiplied by the link latency, what is the effective throughput for the transfer? What percentage of the link bandwidth is utilized?

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