Tribhuvan University
Bachelor of Science in Computer Science and Information Technology
Semester 4 · TU Board 2079
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.
Attempt any two questions (2 x 10 = 20)(2 × 10 = 20)
- 1.10
What is protocol? Explain each layer of OSI modal in detail.
- 2.10
Differentiate error detection with error correction. Explain CRC (Cyclic Redundancy Check) method for error detection with a suitable example.
- 3.10
Explain distance vector routing with example.
Answer comingAlso asked in 2080, 2078, Model question
- 4.10
Why do we need network topology? Explain star topology along with its merits and demerits.
Answer comingAlso asked in 2076
- 5.10
Define Protocol. Why do we need standards?
- 6.10
Write the subnet ID and broadcast address of each subnet if you divide a class C network (192.168.3.0 – 192.168.3.255) into 4 different subnets. What is the new subnet mask?
Answer comingAlso asked in 2082, 2078
- 7.10
What is circuit-switched network? Explain phases during communication in a circuit-switched network?
- 8.10
What is a virtual circuit network? Explain frame relay as a virtual circuit-wide area network.
Answer comingAlso asked in 2082, 2078
- 9.10
Why TCP is called a connection-oriented and reliable protocol? Differentiate TCP with UDP.
- 10.10
Explain architecture of WWW. What is URL?
- 11.10
Explain in brief about software defined network? What are its features?
Answer comingAlso asked in 2082
- 12.10
Write short notes on (any TWO)
- Protocol and standards
- Switch
- Checksum
Attempt any Eight questions (8 x 5 = 40)(8 × 5 = 40)
- 1.10
What is protocol? Explain each layer of OSI modal in detail.
- 2.10
Differentiate error detection with error correction. Explain CRC (Cyclic Redundancy Check) method for error detection with a suitable example.
- 3.10
Explain distance vector routing with example.
Answer comingAlso asked in 2080, 2078, Model question
- 4.10
Why do we need network topology? Explain star topology along with its merits and demerits.
Answer comingAlso asked in 2076
- 5.10
Define Protocol. Why do we need standards?
- 6.10
Write the subnet ID and broadcast address of each subnet if you divide a class C network (192.168.3.0 – 192.168.3.255) into 4 different subnets. What is the new subnet mask?
Answer comingAlso asked in 2082, 2078
- 7.10
What is circuit-switched network? Explain phases during communication in a circuit-switched network?
- 8.10
What is a virtual circuit network? Explain frame relay as a virtual circuit-wide area network.
Answer comingAlso asked in 2082, 2078
- 9.10
Why TCP is called a connection-oriented and reliable protocol? Differentiate TCP with UDP.
- 10.10
Explain architecture of WWW. What is URL?
- 11.10
Explain in brief about software defined network? What are its features?
Answer comingAlso asked in 2082
- 12.10
Write short notes on (any TWO)
- Protocol and standards
- Switch
- Checksum
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