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

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

Principles of Information Security (MindTap Course List)

6th Edition

ISBN:9781337102063

Author:Michael E. Whitman, Herbert J. Mattord

Publisher:Michael E. Whitman, Herbert J. Mattord

Chapter6: Security Technology: Access Controls, Firewalls, And Vpns

Section: Chapter Questions

Problem 2RQ

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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. Suppose both hosts sense idle channel at the same time and start transmission. Will it result in collision (yes or no)? Explain. If yes, How much time is needed to detect this collision at Host-A? Show working. If yes, How much time is needed to detect this collision at Host-B? Show working.
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. Compute the propagation delay in this case. What will be the propagation delay for a shared bus of 10 Mbps instead? Suppose both hosts sense idle channel at the same time and start transmission. Will it result in collision (yes or no)? Explain. If yes, How much time is needed to detect this collision at Host-A? Show working. If yes, How much time is needed to detect this collision at Host-B? Show working.
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What is the size of the multicast address space? Suppose that two multicast groups randomly choose a multicast address. What is the probability that they choose the same address? Suppose nowthat 1,000 multicast groups are ongoing at the same time and choose their multicast group addresses at random. What is the probability that they interfere with each other?