B.Sc. DEGREE EXAMINATION, NOVEMBER 2017
Fifth Semester
Information Technology
Elective — COMPUTER NETWORKS
(CBCS 2014 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
1. Expand the term OSI.
2. What are the types of guided transmission media?
3. What is the difference between error correction and error
detection?
4. List out any three datalink protocols.
5. Define Network layer.
6. Give the expansion of ARP, ICMP and RARP.
7. What is meant by multiplexing?
8. What is the difference between TCP and UDP?
9. Mention any two types of symmetric key algorithm.
10. Define Data compression.
Sub. Code
4BITE2A
AFF-4552
2
Ws15
Part B 5 25)
Answer all questions (Either or Type)
11. Write short notes on TCP/IP reference model with
neat diagram.
Or
Discuss about GEO with neat diagram.
12. Give the importance of sliding window protocols.
Or
Write a brief note on "High level Data Link control".
13. Discuss the concept of link state routing with neat
diagram.
Or
Explain the address resolution protocol and
Internet control Message protocol.
14. Enumerate the various elements of Transport
protocols in addressing with neat diagram.
Or
Write short notes on User datagram protocol.
15. Discuss about Electronic Mail.
Or
Write a brief note on Video standards.
AFF-4552
3
Ws15
Part C 10 30)
Answer any three questions.
16. Discuss about OSI reference model.
17. Write about Error correction and detection.
18. Explain Network layer in Internet.
19. Write a detailed note on TCP segment header with neat
diagram.
20. Describe the concept of public key algorithm with neat
diagram.