*** Please be coherent and concise.Show steps when need!

2. Packet-switched network: message segmentation (15 points). Consider sending a large file of F bits from Host A to Host B. There are three links (and two routers) between A and B. Assume no queuing delay at the routers. Host A segments the file into packets of S bits each and adds 40 bits of header to each packet. Each link has a transmission rate of R Kbps. Suppose F = 64,000 bits, R = 100 Kbps. What is the delay of moving the file from A to B when (1) S = 1000 bytes? (2) S = 100 bytes? (We'll ignore processing delay and propagation delay for this problem). Show intermediate steps