MAHATMA GHANDHI UNIVERSITY (MG)
B.Tech.
DEGREE EXAMINATION, APRIL / MAY 2001
Branch: Computer Science Engineering
COMPUTER NETWORKS (R)
(New
Scheme - 1997 admission onwards)
Time:
Three Hours Maximum: 100 Marks
Part A
Answer
all questions.
1. Discuss the star network toology. the IS
2. Discuss the functioning of the
Physical Layer thO model
3. Discuss what is meant by routing
table.
4. Discuss datagram concept a applied to
network layer.
5. Differentiate between bridges and
routers.
6. Discuss the nature of IP packets and
their headers.
7. Explain connectionless protocol with
a typical example.
8. Explain the FTP service.
9. Discuss the implementation of access
management as applied to the presentation layer.
10. Explain the sliding window protocol. (10 x 4 = 40 marks)
Part B
Answer all questions.
All questions carry equal marks.
11. (a) With a neat block diagram,
explain briefly the ISO Jaye model.
Or
(b) Compare analog transmission and digital transmission with special
reference to ISDN.
12. (a) Discuss the concept of a data
packets and their formats tis used in computer networks.
Or
(b) I xplain the various hardware components used for computer data
communication.
13. (a) Discuss satellite packet
broadcasting in brief
Or
(b) Discuss the IEEE and 802.3 standards for LAN.
14. (a) Explain the session layer
services and their implementation. Or
(b) Discuss the services implemented in the transport layer and the
nature of the implementation.
15. (a) Discuss
the need for data compression techniques the methods used for it as applied to
computer communication.
Or
(b) Explain the nil poitant
services offered by the presentation layer. (5
x 12 = 60 marks)
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