CSEE W4119 Computer Networks
Homework 2 - Solution
Prof. Gil Zussman
1
Total 12 pts.
a (4 pts.)
M C = L/r
b (4 pts.)
(1)
The probability that exactly N users are busy is:
MP
N
pN (1 p)(M P N )
(2)
Thus the probability that more than N users are busy is g
CSEE W4119 Computer Networks
Homework #3 - Solution
Prof. Gil Zussman
1. (15 points)
Consider the rdt3.0 protocol. Draw a diagram showing that if the network connection
between the sender and receiver can reorder messages (that is, that two messages
propa
CSEE W4119 Computer Networks
Homework 4 Solution
Professor Zussman
1 (20 pts.)
a. (5 pts.) The sequence number is 214, source port number is 503 and destination port
number is 80.
b. (5 pts.) The acknowledgement number is 214, the source port number is 80
CSEE W4119 Computer Networks
Homework 6 Solution
Professor Zussman
1.
a)
E ( p) Np(1 p) N 1
E ' ( p) N (1 p) N 1 Np( N 1)(1 p) N 2
N (1 p) N 2 (1 p) p( N 1)
E ' ( p ) 0 p*
1
N
b)
E ( p*) N
1
1
(1 ) N 1
N
N
lim (1
N
1
) 1
N
1 N
)
1 N 1
N
(1 )
1
N
1
N