Question 2. Problem 19 on page 69 (10 points) Suppose Host A wants to send a large file to Host B. The path from Host A to Host B has three links, of rate Ri-500 kbps, R:-2 Mbps, and Ri-1 Mbps. Assuming no other traffic in the network, what is the throughput for the file transfer? 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? Repeat (a) and (b), but now with R: reduced to 100 kbps. a. b. c