Tribhuvan University
Bachelor of Computer Application
Semester 5 · TU Board 2025
Course Title: Computer Networking (CACS303)
Full Marks: 60Pass Marks: 24Time: 3 hours
Candidates are required to answer the question in their own words as far as possible.
Group B
Attempt any SIX question.(6 × 5 = 30)
- 2.5
What is a computer network? Explain network architecture with an example.
Answer comingAlso asked in 2024
- 3.5
Compare and write about the OSI model and TCP/IP models.
- 4.5
What is multiplexing? Explain different types of multiplexing.
- 5.5
What are the different types of error detection codes? Write about Hamming code.
- 6.5
Write the difference between CSMA/CD and CSMA/CA.
- 7.5
Write the function of the network layer. Write about the TCP header.
- 8.5
What are the differents security measures used in computer networking?
Group C
Attempt any TWO questions(2 × 10 = 20)
- 9.10
Write and compare the differences between IPV4 and IPV6 frame format. [5+5]
- 10.10
Differentiate error detection from error correction. Explain with CRC (Cyclic Redundancy Check) method for error detection with suitable example. [5+5]
- 11.10
What is IP routing? Find the total number of usable hosts, the network ID, and broadcast ID of each subnet from the given IP 192.100.78.23/26
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