Tribhuvan University Computer Networks Board Exam Questions (2082)

Computer Networks (CSC263) 2082 BS Past Questions

TRIBHUVAN UNIVERSITY

INSTITUTE OF SCIENCE AND TECHNOLOGY

Bachelor Level: B.Sc. CSIT

Semester: Fourth Semester

Subject: Computer Networks (CSC263)

Full Marks: 60 / 80

Pass Marks: 24 / 32

Candidates are required to give their answers in their own words as far as practicable.

Long Answer Questions

Attempt any Two questions.

1
What are the advantages of layered architecture in network communication? Explain TCP/IP protocol stack in detail.
2
What are the services provided by Transport Layer? Explain working principle of Distance Vector Algorithm with suitable example.
3
Differentiate between IPv4 and IPv6 protocol in brief. Explain Cyclic Redundancy Check with suitable numerical example.

Short Answer Questions

Attempt any Eight questions.

4
How is connection established in TCP protocol using 3-way handshaking? Explain.
5
Write subnet ID, broadcast address and address range of each subnet if you divide a class C network 193.168.2.0/24 in 8 different subnets. What is the new subnet mask?
6
What is the major purpose of DNS? Explain how DNS resolves domain name to IP address.
7
Discuss different guided transmission media in brief.
8
Briefly explain Go-Back-N ARQ and Selective Reject ARQ protocols.
9
What is HTTP protocol? Explain HTTP Request and HTTP Response message in brief.
10
What is virtual circuit network? Explain ATM as a virtual circuit wide area network.
11
What is software defined network? Explain in brief.
12
Write short notes on: a. Leaky Bucket b. FTP Protocol