Suppose Host A wants to send a large file to Host B. The path from Host A to Host B has three links, or rates R₁ = 1 Mbps, R₂ = 3Mbps, and R₃ = 5 Mbps.

1. (2 pt.) Assuming no other traffic in the network, what is the throughput for the file transfer?

Min (1 mb, 3 mb, 5 mb) =1 mb

2. (3 pt.) Suppose the file is 10 MB. Dividing the file size by the throughput, roughly how long will it take to transfer the file to Host B?

Bytes-> bits 80000000 bits / 10000000 bp = 80 secs

Now assume R₃reduced to 500 kbps.

3. (2 pt.) What is the throughput?

4. (3 pt.) What is the file transfer time?

SOLVE PART C AND D, since a and b are already figured out