DISTANCE EDUCATION
B.Sc. (IT)/B.Sc. (Lateral) DEGREE EXAMINATION,
MAY 2016.
COMPUTER NETWORKS
(2007 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
All questions carry equal marks.
20 100)
1. Define Topology. Explain briefly about the various
topologies with neat sketch.
Explain in detail about OSI Model and services
provided by the layers with neat sketch.
2. Discuss the important design issues of Data Link
Layer.
Describe the concept of Sliding Window Protocol
with suitable illustrations.
3. How adaptive Routing is different from
Non-Adaptive Routing?
Explain briefly about Congestion Control with
suitable examples.
4. What are the elements of Transport Protocol?
Discuss briefly.
Describe how connections are established and closed
in TCP.
Sub. Code
31
DE-3412
2
wk11
5. Explain in detail about the important components of
E-Mail with neat sketch.
Discuss briefly about RSA algorithm with suitable
examples.
6. Give a detailed note on ATM Reference Model with
neat sketch.
Explain the concept of Simplex Stop and Wait
Protocol.
7. Define ALOHA. How pure ALOHA is different from
Slotted ALOHA?
Discuss the salient features of Address Resolution
Protocol (ARP).
8. Illustrate the importance of User Datagram
Protocol (UDP).
Give a detailed note on One Time Pad with suitable
examples.