B.TechSemester 42021-22Computer System SecurityKNC401

Computer System Security (KNC401) - AKTU Question Paper 2021-22

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Computer System Security Previous Year Question Paper for B.Tech Semester 4, academic session 2021-22. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 4

Session:2021-22

University:AKTU / UPTU

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Questions Asked in 2021-22

Computer System Security (KNC401) — complete question paper

Section AAttempt all q u e s t i o n s i n b r i e f . 2*10 = 20

a
What are the 3 aspects of security? 1
b
State the need of Computer Security. 1
c
What is the difference between Discretionary Access Control and Mandatory Access Control?
d
Give three benefits of IPsec? 4
e
Describe (A) S niffing (B) Spoofing 1
f
Explain some of the weakne ss of Internet security. 5
g
Explain advanced anti-XSS tools 3
h
What is the problem of covert channel in VMM security? 2 (i) Explain the terms: Cryptogr aphy, Cryptanalysis and Cryptology. 4 (j) In the context of access control, what is the difference be tween a subject and an object?

Section BAttempt any three o f t h e f o l l o w i n g : 10*3 = 30

a
Explain any four attacks on C omputer System Security. 1
b
What is intrusion detecti on system? Explain host based IDS. 2
c
Define Cross site scripting (XSS). 3
d
Explain SSL Encryption. What are the steps involved in SSL: server authentication?
e
What is firewall? Explain di fferent types of firewalls. And also explain the working of packet filtering firewall

Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10*1 = 10

a
What is control hijacking with an example? Explain the term of buffer overflow in control hijacking
b
What is Access Control list (ACL) and also defined what are t h e technologies used in access control?
a
Write short notes on 2 I. Software fault isolation II. VM based isolation
b
Define Network based IDS. What are its strengths and limit ations. 2
a
Define web server threats? And explain 5 major web server threats in detail
b
Discuss how vulnerabilities can be exploited in web applications. 3
a
List and explain the key part icipants in secure electronic transaction 4
b
Explain and compare key excha nge algorithm used in IP sec. 4
b
What is an Intrusion Detection System? How Does an IDS Enha nce Security Management?

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.