Computer Networks, 2063 Baisakh - Old questions

TRIBHUVAN UNIVERSITY
INSTITUTE OF ENGINEERING
Examination Control Division
Full Marks:
80
Pass Marks
30
Time
3 hrs.

Computer Networks, 2063 Baisakh

Candidates are required to give their answers in their own words as far as practicable.
Attempt All questions.
The figures in the margin indicate Full Marks
Assume suitable data if necessary
    [5+3]
  • 1. Why computer network is important? Differentiate between physical and logical topology.
  • [5+3]
  • 2. Explain the ring and bus topologies in computer network and compare it.
  • [5]
  • 3. Write brief notes on network server and network workstation.
  • [8]
  • 4. What are the characteristics of IEEE token bus LAN standard? Explain.
  • [9]
  • 5. Explain in detail about X.25 data link layer and X.25 data packet header.
  • [4+3]
  • 6. Why do you need adaptive routing? Compare it with flooding.
  • [2+6]
  • 7. What do you mean by congestion control? List and discuss some congestion algorithms.
  • [4+4]
  • 8. Write diagram of IP header and explain the purpose of Fragment Offset, Time to Live and Protocol fields.
  • [4+2]
  • 9. What do you mean by IP source routing? What is it's advantage?
  • [2+4]
  • 10. What type of protocol in UDP? Explain UDP header.
  • [5+2]
  • 11. What are the functions of Message Handling System (MHS)? Discuss briefly. What is difference between MHS and MTS?