Computer Networks
The main objective of this course is to introduce the understanding of the concept of computer networking with its layers, topologies, protocols & standards, IPv4/IPv6 addressing, Routing and Latest Networking Standards
Tribhuvan University
Institute of Science and Technology
2078
Bachelor Level / fourth-semester / Science
Computer Science and Information Technology( CSC263 )
Computer Networks
Full Marks: 60 + 20 + 20
Pass Marks: 24 + 8 + 8
Time: 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.
Long Answer Questions
Attempt any two questions (2 x 10 = 20)
What is transmission media? How do guided media differ from unguided media? Explain different types of guided media in detail.
What is flow control? Explain Stop-and-Wait ARQ with suitable example. How is it different from G-Back-N ARQ?
Explain link state routing with example.
Short Answer Questions
Attempt any Eight questions (8 x 5 = 40)
Explain client/server network. How is it different from peer to peer network?
What is CSMA/CD? Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?
What subnet ID and broadcast address of each subnet if you divide a class B network (150.10.0.0 – 150.10.255.255) in 4 different subnets. What is the new subnet mask?
Explain the structure of IPv6 address. Compare IPv6 address with IPv4 address.
What is virtual circuit network? Explain ATM as a virtual circuit wide area network.
What is routing table? Differentiate static routing table with dynamic roting table.
What is open-loop congestion control? Compare it with closed-loop congestion control.
What are the different approaches for multimedia streaming? Explain.
Write short note on (any two):
- Blackbone network
- ISDN
- ALOHA