part 1: Suppose value of K is 1 (Ethernet CSMA/CD), compute backoff time when link capacity (data rate) is: 10 kbps 100 kbps part 2: Suppose a frame (F) experiences collision forth time on a shared...

part 1:

Suppose value of K is 1 (Ethernet CSMA/CD), compute backoff time when link capacity (data rate) is:

1. 10 kbps


2. 100 kbps

part 2:

Suppose a frame (F) experiences collision forth time on a shared Ethernet link of I Mbps:

1. What is the maximum possible value of K in this case


2. Suppose maximum value of K is taken, compute backoff bit time for frame F


3. Convert bit time into absolute time (second or fraction of a second)

part 3:

Suppose two hosts (Host-A and Host-B) are connected through a shared Ethernet bus of 1 Mbps. The distance between two nodes is 5 meters.  The signal propagation speed over physical media is 2.5 x 10^5 meters/second.

1. Compute the propagation delay in this case.


2. What will be the propagation delay for a shared bus of 10 Mbps instead


3. Suppose both hosts sense idle channel at the same time and starts transmission. Will it result in collision (yes or no)


4. If yes: How much time is needed to detect this collision at Host-A?


5. If yes: How much time is needed to detect this collision at Host-B?