1) Suppose two hosts, A and B, are separated by 15,000 kilometers and are connected by a direct link of R = 5 Mbps. Suppose the propagation speed over the link is 2.5 * 10⁸ meters/sec.

a. How long does it take to send a 1,500,000 bit file, assuming it is sent continuously?

b. Suppose now the file is broken up into 50 packets which each packet containing 30,000 bits. Suppose that each packet is acknowledged by the receiver and the transmission time of an acknowledgment is negligible. Finally, assume the sender cannot send a packet until the preceding one is acknowledged. How long does it take to send the file?

c.Compare the results from the two parts