Questions
Syllabus
Qns. By Syllabus

Semester

Subject

Year

Tribhuwan University

Institute of Science and Technology

2082.1

Bachelor Level / Fourth Year / Eighth Semester / Science

Bachelors in Information Technology (BIT451)

(Network and System Administration)

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.
Explain the functionalities of different layers of TCP/IP protocol suite. How IPV6 is different from IPV4? Explain. [6+4]
2.
Explain user, group, and privilege management in Linux system administration using suitable commands. [10]
3.
What is DNS zone transfer? Explain the difference between full zone transfer (AXFR) and incremental zone transfer (IXFR). Why is zone transfer security important? [3+5+2]
Section B

Short Answers Questions

Attempt any Eight questions.
[8*5=40]
4.
What is CUPS? Explain basic CUPS configuration. [1+4]
5.
What is a proxy caching server? Explain its configuration and benefits for network performance and bandwidth management. [1+4]
6.
Describe firewall configuration using iptables or firewalld to allow: SSH, HTTP/HTTPS and Custom port. [5]
7.
What is the difference between Xinetd and Inetd services? [5]
8.
How do SDN controllers communicate with data planes? Explain SDN architecture with a diagram. [1+4]
9.
What are different network troubleshooting commands? [5]
10.
What is DHCP? How can you configure the DHCP server? Explain. [1+4]
11.
Explain the roles of SMTP, POP3, and IMAP in email communication. [5]
12.
Write short notes on: a) VLSM b) ACL [5+2.5+2.5]