LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
M.C.A. DEGREE EXAMINATION – COMPUTER APPLICATIONS
FOURTH SEMESTER – April 2009
RI 27
CA 4801 - COMPUTER NETWORKS
Date & Time: 21/04/2009 / 9:00 - 12:00
Dept. No.
Max. : 100 Marks
PART-A
Answer ALL Questions:
10 x 2 = 20
1. Define Protocol.
2. Write any two functions of Network Layer.
3. Distinguish between TCP and UDP.
4. Write any two features of Optical Cable.
5. List any two features of Bus Topology.
6. Mention the different types of IP addresses.
7. Comment on TTL.
8. Differentiate between HTTP and SMTP.
9. What is the role of gateway?
10.Define XML.
PART-B
Answer ALL Questions:
5 x 8 = 40
11.a) Explain the Internet Architecture with its functions
(or)
b) Explain the Cyclic Redundancy Check algorithm used in Error Detection.
12.a) Explain the Concept of Token ring with an example.
(or)
b) Compare Mesh, Ring and Star Topologies.
13.a) Explain Link State Routing with an example.
(or)
b) Explain the concept of simple Internetworking with suitable diagram.
14.a) Write short notes on User Datagram Protocol.
(or)
b) Describe any one of the Congestion-Avoidance Mechanisms in detail.
15.a) Discuss the Video Compression Mechanism in detail.
(or)
b) Write a detailed note on SNMP.
PART-C
Answer any TWO Questions:
(Q.No 16 is compulsory)
2 x 20 = 40
16.Discuss the Open System Interconnection network Architecture with functions.
17.Discuss the two classes of Routing Protocol with suitable example.
(or)
18.Discuss the concept of Domain Name System with example.
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