BCA 5th Semester
Computer Networking 2025 Board Question Paper - Tribhuvan University (TU) 2025

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Tribhuvan University

Faculty of Humanities & Social Science
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Bachelor In Computer Application

Course Title: Computer Networking

Code No: CACS 303

Semester: V

Full Marks: 60 Pass Marks: 24 Time: 3 hours

Candidates are required to answer the question in their own words as far as possible.

Group B
Attempt any SIX question.
[6x5=30]
2.

What is a computer network? Explain network architecture with an example.

3.

Compare and write about the OSI model and TCP/IP models.

4.

What is multiplexing? Explain different types of multiplexing.

5.

What are the different types of error detection codes? Write about Hamming code.

6.

Write the difference between CSMA/CD and CSMA/CA.

7.

Write the function of the network layer. Write about the TCP header.

8.

What are the differents security measures used in computer networking?

Group C

Attempt any TWO questions

[2x10=20]
9.

Write and compare the differences between IPV4 and IPV6 frame format. [5+5]

10.

Differentiate error detection from error correction. Explain with CRC (Cyclic Redundancy Check) method for error detection with suitable example. [5+5]

11.

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