HW1 - CS 453: Computer Networks Fall 2009 Homework 1...

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CS 453: Computer Networks Fall 2009 Homework 1 Instructor: V. Arun Assigned: 9/17/09, Due: 9/23/09 Note: Please show as much of your work as you can. Whenever possible, use variable names before plugging in numerical values . Even if you get the answer wrong, you can get partial credit if you show your approach clearly. It will help us tell you where you made a mistake. If you plug in numbers right upfront and your answer is wrong, you are unlikely to get partial credit. Some of the quickies may require self-reading or they will be covered in class on 9/21. Problem 1: Quickies (30 points) A. What are the five layers in the Internet protocol stack? What are the principal responsibilities of each of these layers? B. Give one advantage and one disadvantage of circuit switched networks over packet switched networks. C. Explain TDM and FDM in one sentence each. D. List four factors that contribute to the end-to-end delay in a packet-switched network. Which of these are constant and which of these depend on the load in the network?
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HW1 - CS 453: Computer Networks Fall 2009 Homework 1...

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