Questions
Syllabus
Qns. By Syllabus

Semester

Subject

Year

Tribhuwan University

Institute of Science and Technology

2080

Bachelor Level / Second Year / Fourth Semester / Science

B.Sc in Computer Science and Information Technology (CSC263)

(Computer Networks)

Full Marks: 60

Pass Marks: 24

Time: 3 Hours

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

The figures in the margin indicate full marks.

Section A

Long Answers Questions

Attempt any TWO questions.
[2*10=20]
1.
What is classless addressing? Explain distance vector routing with a suitable example. [10]
2.
What is flow control? How does stop-and-wait ARQ protocol handle error? Where does this protocol reside in OSI layer? [10]
3.
Explain TCP header with a neat diagram. Highlight on its uses. [10]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
What do you understand by packet switching? Explain. What are its advantages and disadvantages? [5]
5.
Explain different types of network types. [5]
6.
Differentiate between link state and distance vector routing. [5]
7.
What is socket programming? Explain token bucket algorithm with an example. [5]
8.
Differentiate between IMAP and POP3. Explain SNMP. [5]
9.
Explain the architecture of NGN. [5]
10.
Highlight on the use of PPP. What are the functions of Media Access Control. [5]
11.
Write short notes on: a. IPV6 b. Microwave [5]
12.
Suppose you are given an IP address 172.16.0.0, perform subnetting and divide the given network into 2 subnets. Calculate total number of hosts that can be configured, range of the IP addresses. [5]