Tribhuvan University
Bachelor of Science in Computer Science and Information Technology
Semester 4 · TU Board 2080 (new course)
Course Title: Computer Networks (CSC263)
Full Marks: 60Pass Marks: 24Time: 3 hours
Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.
Group A
Attempt any TWO question.(2 × 10 = 20)
- 1.10
What is classful addressing? Explain link state routing with a suitable example.
Answer comingAlso asked in 2080, 2079, 2078, Model question
- 2.10
What is flow control? How does stop-and-wait ARQ protocol handle error? What are its disadvantages.
Answer comingAlso asked in 2080
- 3.10
Explain TCP header with a neat diagram. Highlight on its uses.
Answer comingAlso asked in 2080
Group B
Attempt any EIGHT question.(8 × 5 = 40)
- 4.5
Explain different types of network topologies.
- 5.5
What do you understand by circuit switching? Explain. What are its advantage and disadvantage ?
- 6.5
State the functionality of logical link control. Briefly explain HDLC.
- 7.5
Differentiate between unicast and multicast routing.
- 8.5
What is the difference between port and socket? Explain leaky bucket algorithm with example.
- 9.5
What do you understand by DNS? Explain FTP and SFTP.
- 10.5
Explain architecture of SDN.
- 11.5
Suppose you are given an IP address 192.168.0.0, perform subnetting and divide the given network in 2 subnets. Calculate total number of host that can be configured, range of IP address.
Answer comingAlso asked in 2080
- 12.5
Write short notes on :
- IPv4
- Infrared
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