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?

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?

Now assume R₃reduced to 500 kbps.

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

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