Question: 3. Throughput (15 pt., 5 pt. each) Suppose Host A wants to send a large file to Host B. The path from Host A to

3. Throughput (15 pt., 5 pt. each)

Suppose Host A wants to send a large file to Host B. The path from Host A to Host B has three (3) links, of rates R1 = 500 kbps, R2 = 2 Mbps and R3 = 1 Mbps.

a. Assuming no other traffic in the network, what is the throughput for the file transfer? (Explain your answer).

b. Suppose the file is 4 million bytes. Dividing the file size by the throughput, roughly how long will it take to transfer the file to Host B? (Show work).

c. Repeat (a) and (b), but now with R1 reduced to 100 kbps. (Show work).

i(a):

ii(b):

Another Reminder: show your work for ALL questions (including assumptions made) not just the answers and/or tables. You will not earn full credits if you do not show your full work. You will earn 0 point if you provide just the answer(s) or table without showing how you came about them. This is very important note for all.

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