Shivaji University 2007 B.E Computer Science Computer Network - exam paper

S-501
SECOND YEAR OF COMPUTER SCIENCE AND ENGINEERING (PART-2) EXAMINATION, 2007
SHIVAJI UNIVERSITY, KOLHAPUR
COMPUTER NETWORKS

Day and Date: Saturday, 19-05-2007 Total Marks: 100
Time: 10.00a.m. To 1.00p.m.

Instructions: 1) Attempt any 3 ques. from every part.

2) Figures to right indicate full marks.


SECTION-1

Q.1 a) Justify “The maximum channel utilization in pure ALOHA protocol is 18.4%.” [Marks 4]

b) discuss CSMA/CD protocol in detail.[Marks 6]

C) discuss the subsequent terms in relation with token ring. [Marks 6]

1) Token ring interface

2) Token ring physical layer

3) Wire center


Q.2 a) discuss advantage and disadvantages of connection oriented service at network layer.[Marks 6]

b) elaborate the desirable properties of routing algorithms? discuss every in brief.[Marks 6]

C) discuss the use of ALOHA protocol in satellite network.[Marks 4]


Q.3 a) discuss working of distance vector routing in detail’[Marks 4]

b) What is “count to infinity” problem? How it is solved? [Marks 6]

c) What is congestion in computer network? List the reasons behind congestion. [Marks 6]



Q.4 a) Write short notes on (any three) [Marks 18=6*3]

1) Token Bucket Algorithm

2) Connectionless Internetworking

3) Tunneling

4) FDDI 802.4 standard.




SECTION-2




Q5. a) discuss in detail IP protocol.[Marks 8]

b) discuss functions of network layer in ATM networks.[Marks 8]


Q.6 a) Differentiate in ranging from TCP and UDP.[8]

b) define service primitives and elements of transport protocol.[Marks 8]


Q7) a) discuss data encryption standards (DES)? How it works?[Marks 8]

b) provide public key algorithm and discuss it with suitable example.[Marks 8]


Q8. Write short notes on (any three)[Marks 18=6*3]

a) ARP

b) DNS

c) WWW

d) SNMP

Earning:   Approval pending.