MAHATMA GHANDHI UNIVERSITY (MG)
B.TECH.
DEGREE EXAMINATION APRIL 2005
DEPARTMENT
OF COMPUTER SCIENCE AND ENGINEERING
6TH SEMESTER
Computer
Networks (R, I)
Time : Three Hours
Maximum : 100 Marks
Answer all questions.
1. Explain the ISDN system
architecture.
2. Give the advantages and
disadvantages of bus topology
3. Explain point-to-point
network.
4. Explain flow Control.
5. Explain the properties
ofcommunication satellit
6. Briefly explain es. the features of LAN protocols.
7. What are the goals of
transport layer? Explain.
8. Explain briefly the design issues
of session layer.
9. What is meant by cryptography?
Explain the two principles of cryptography.
10. Fxplaill electronic mail.
Part B
11. What is the role of ill d transmission
media in LAN? Explain digital
transmission.
Or
(1) Draw the (.BSI referee model and explain
the functions of different layers.
12. (a) Explain in detail the
congestion control algorithm.
Or
(b) Write notes on :
(i) Optimal routing (ii) Query flooding
13. (a) Describe the IEEE 802.3
for LAN.
Or
(b) Explain the difference between Pure
ALOHA slotted ALOHA.
14. (a) Discuss the internet
Transport Protocols.
Or
(b) Explain in detail how a TCP connection
is established and torn down. ression
techniques.
15. (a) Explain in detail the
different data comp
Or
(b) Write notes on : (1) Virtuat terminal
(n) File transfer.
(5 x 12 = 60 marks)
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