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):

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