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
2081
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.
SECTION A
Attemt any TWO question.
A bit stream 1101011011 is transmitted using the standard CRC method. The generator polynomial is 10011. What is the actual bit transmitted?
What are the features of the application layer? Why is DNS required? Explain about recursive, non-recursive, and iterative DNS queries.
Provide reasons for transitions from IPv4 to IPv6. Describe the IPv6 datagram format.
SECTION B
Attemt any EIGHT question.
Explain about connection-oriented network services.
Illustrate the functionality of Media Access Control.
Why do you think Network Functions Virtualization architecture is required? Explain.
Assume a class C network and divide it into three subnets. What is the value of the new subnet?
Difference between web serverand proxy server.
Explain the working mechanism of token bucket.
What do you understand by PPP protocol? Explain its link setup process.
Explain any two wireless transmission media.
Write short notes on:
- ICMP
- IGMP