Tribhuvan University
Bachelor of Science in Computer Science and Information Technology
Semester 4 · TU Board 2082
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(2 × 10 = 20)
- 1.10
What are the advantages of layered architecture in network communication? Explain the TCP/IP protocol stack in detail.
- 2.10
What are the services provided by the Transport Layer? Explain the working principle of the Distance Vector Algorithm with a suitable example.
- 3.10
Differentiate between IPV4 and IPV6 protocol in brief. Explain Cyclic Redundancy Check with a suitable numerical example.
Group B
Attempt any EIGHT(8 × 5 = 40)
- 4.5
How is a connection established in TCP protocol using 3-way handshaking? Explain.
- 5.5
Write the subnet ID, broadcast address and address range of each subnet if you divide a class C network 193.168.2.0/24 into 8 different subnets. What is the new subnet mask?
View answerAlso asked in 2079, 2078
- 6.5
What is the major purpose of DNS? Explain how DNS resolves a domain name to an IP address.
- 7.5
Discuss different guided transmission media in brief.
- 8.5
Briefly explain Go-Back-N ARQ and Selective Reject ARQ protocols.
- 9.5
What is HTTP protocol? Explain HTTP Request and HTTP Response message in brief.
- 10.5
What is a virtual circuit network? Explain ATM as a virtual circuit wide area network.
View answerAlso asked in 2079, 2078
- 11.5
What is a software defined network?
Answer comingAlso asked in 2079
- 12.5
Write short notes:
a) Leaky Bucket
b) FTP Protocol
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