Tribhuvan University
Bachelor of Computer Application
Semester 5 · TU Board 2024
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
Why layered architecture is required in Computer Network?
Answer comingAlso asked in 2025
- 3.5
What is switching? Explain different switching technology.
- 4.5
Define point to point protocol. Explain the PPP frame formats.
- 5.5
Suppose you are given an IP address 193.169.0.0, perform subnetting and divide the given network in 5 subnets. What is the new subnet mask? Calculate broadcast, network address, range of IP address that can be assigned to the host in each subnet.
Answer comingAlso asked in 2022
- 6.5
Explain the working mechanism of Digital Signature algorithm with suitable diagram.
Answer comingAlso asked in 2022
- 7.5
Explain the various congestion control approaches.
- 8.5
Write short notes on : a) FDDI b) IPSEC
Group C
Attempt any TWO questions(2 × 10 = 20)
- 9.10
Define flow control and explain the Go-Back-N ARQ protocol with an appropriate example. How does it differ from the Stop-and-Wait ARQ protocol?
- 10.10
Explain how slotted Aloha improves over pure Aloha. What do you mean by multiple access protocol? Explain channelization protocol in detail.
- 11.10
Explain the importance of routing algorithm. Explain Distance Vector Routing algorithm with example and compare it with link state routing.
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