Course: CISC450/650 ELEG651 CPEG419 Computer Networks
Professor: Paul D. Amer
Title: Homework Chapter 1
Due Date:

Read Chapter 1 with emphasis on Section 1.5. An abundance of terminology and information is introduced in this chapter. The goal is to understand all of it by the end of this course. Do not read only those sections needed to answer the questions below. READ THE ENTIRE CHAPTER.

Preparation Tasks (DON'T SKIP THESE!)

  • Play with the "Computing End-End Delay" interactive exercise
  • Play with the "Quantitative Comparison of Packet Switching and Circuit Switching" interactive exercise

    Tasks (written answers expected at the beginning of class on the due date)

    1. (2 pts) Review Question R16
    2. (2 pts) Review Question R17
      • submit your two combinations.
    3. (2 pts) Review Question R21
    4. (2 pts) Problem 5
      • "in front of one tollbooth" means the cars do have to pass thru the first tollbooth itself (see fig 1.17)
      • "the question implies tollbooths are changed to 75km apart
    5. (2pts) Problem 10.
    6. (2 pts) Problem 13
      • for full credit, simplify any summations in the solution
    7. (3 pts) Problem 18
      • part a - just find the average
      • part d - omit
      • submit printouts of your Traceroutes
    8. (1 pt) Problem 24
    9. [Grad Students - Required. Undergrad Students - Extra Credit] (2 pts) Problem 25
    10. [Grad Students - Required. Undergrad Students - Extra Credit] (1 pts) Problem 26
    11. (2 pts) Problem 32
      • Only answer the second question "How do link propagagion delays..."

    Rules

    1. Students are expected to work in groups of 2; special permission is required to work individually.  Working "together" means just that; during the evaluation of answers, both students are physically in the same room. Working together does not mean one student does the even questions and the other does the odd questions. Working together does not mean one student does assignments 1,3,5,... while the other student does assignments 2,4, ... A group should turn in one assignment clearly identifying both partners.
    2. Students may get assistance from the Professor and/or the TA, and other networking textbooks.
    3. Students may not get assistance from other students in or not in the class. In particular, students in different groups may NOT compare answers prior to submission. Students may not get answers off the Web. Getting unapproved outside assistance or comparing answers with other groups prior to submitting the assignment is considered cheating.  Once an assignment is submitted, students are permitted and encouraged to discuss the answers with anyone they wish. (See the syllabus for the complete Academic Honesty policy.)
    4. Answers must be legible and include work. Illegible answers and answers without work will be returned without grading or simply given little to no credit.