40 points

1. Following figure shows a client computer is connected through two routers by optical cable, the distance from client to sever is 6000km, the data rate of the link are shown in the figure, assume buffering time for each router is 1.2 ms . Client computer down load a file with 2500 bytes from server, assume Speed of light = 3 * 10⁸ m/s

A. What is Transmission Time?

What is Propagation delay?

What is the latency (total delay)?

What is the throughput?

2.Convert 101100111 to polynomial

3. Show the CRC circuit for 1101

4. Find the FCS for message 1101101 using CRC circuit of problem #3

5. Find the Block Check Character (BCC) for word NETWORK.

6. Find the sum of the ones complement of the word NETWORK.