1)

What is a collision in a shared wired medium? When a sender detects a collision during its transmission, what will the sender do? Why is a jam signal 32 bits?

2)

What are the differences between a collision domain and a broadcast domain? Please show examples.

3)

Two stations A and B are attached to a shared Ethernet network. If the third collision occurred between A and B, what is the probability of the fourth collision? Show the detail steps after detecting the first collision.

4)

What is the mechanism in CSMA/CD to guarantee a sender can always detection any potential collision? Please explain your answer.