ECS 152A       Computer Networks      Assigned: Thursday, April 17, 2008
Spring 2008    Assignment 2           Due: Wednesday, April 23, 2008
                                      (4:30 pm in Room 2131 Kemper Hall)


Note:
+  If you make any assumptions, please write them down clearly.
+  Do not assume that the person grading your work will correctly
   "guess" your assumptions.
+  When multiple solutions to a problem exist, the best solution
   will fetch the maximum credit.
+  Total points: 100


1. (5 points) Text (Kurose), pp. 178, Review Question 3

2. (5 points) Text (Kurose), pp. 178, Review Question 4

3. (5 points) Text (Kurose), pp. 179, Review Question 11

4. (5 points) Text (Kurose), pp. 180, Review Question 22

5. (5 points) Text (Kurose), pp. 180, Review Question 23

6. (20 points) Text (Kurose), pp. 182, Problem 9
   [Solve this problem with the following revised parameters:
    average object size = 600,000 bits (instead of 900,000 bits),
    average request rate = 3.0 requests per second (instead of 15
    requests per sec), hit rate in part (b) = 0.5 (instead of 0.4).]

7. (20 points) Text (Kurose), pp. 183, Problem 10

8. (20 points) Text (Kurose), pp. 185, Problem 19

9. (15 points) Text (Kurose), pp. 186, Problem 22
   [Solve this problem with the following revised parameters:
    each super-duper peer is roughly responsible for 300 super peers
    (instead of 200 super peers), and
    each super peer is roughly responsible for 300 ordinary peers
    (instead of 200 ordinary peers).]