Tamil Nadu Open University (TNOU) 2006 M.C.A COMPUTER NETWORKS - Question Paper

Tamil Nadu Open University Master of Computer Applications (MCA) - MCA15 June 2006
June 2006

M.C.A. DEGREE exam - JUNE 2006.
Third Semester / 2nd Year

(For candidates admitted in AY 2004-05 and CY-2005 and lateral entry candidates admitted in AY 2005-06)

COMPUTER NETWORKS
Time: three hours

Maximum marks 75

PART A - (5x5=25 marks)
ans any 5 ques..

1. Diagrammatically illustrate and explain star topology.

2. Compare broadband ISDN and narrowband ISDN.

3. Compare ALOHA protocol and slotted ALOHA protocol.

4. elaborate collision free protocols? explain.

5. Distinguish ranging from connection oriented and connectionless services. provide relevant examples.

6. How can network performance be measured? explain.

7. What is DNS? explain the need for DNS.

PART B - (5x10=50 marks)
ans any 5 ques..

8. With a neat sketch explain the ISO-OSI reference model.

9. With a neat sketch explain the ATM architecture.

10. explain sliding window protocol using selective repeat and sliding window protocol using go-back-n.

11. With a relevant example explain how cyclic redundancy check (CRC) can be used in fault detection.

12. elaborate ATM LANs? explain the architectural setup for ATM LANs.

13, explain the different e1ements of Transport protocols.

14. explain the MPEG standard for data compression.

Earning:   Approval pending.