Consider a transcontinental link of 5000 miles with a bandwidth of 40 Gbps. Assume the propagation speed is 2 × 10 8 m/sec.  a. What is the width of one bit in time and in length, respectively?  b....

Consider a transcontinental link of 5000 miles with a bandwidth of 40 Gbps. Assume the propagation speed is 2 × 10 8 m/sec.

 a. What is the width of one bit in time and in length, respectively?

 b. How many bits can be contained in the link at most?

 c. What is the transmission time of a packet of 1500 bytes?

 d. What is the propagation time through this link?