Download JNTUH (Jawaharlal nehru technological university) MCA (Master of Computer Applications) 4th Sem (Fourth Semester) Regulation-R13 2019 April-May 814AT Information Security Previous Question Paper
R13
Code No: 814AT
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
MCA IV Semester Examinations, April/May - 2019
INFORMATION SECURITY
Time: 3 Hours
Max. Marks: 60
Note: This question paper contains two parts A and B.
Part A is compulsory which carries 20 marks. Answer all questions in Part A. Part B
consists of 5 Units. Answer any one full question from each unit. Each question carries
8 marks and may have a, b, c as sub questions.
PART - A
5 ? 4 Marks = 20
1.a) What are the security services?
[4]
b) Discuss the terms: Block ciphers and stream ciphers.
[4]
c) What are the design objectives for HMAC? Compare HMAC and CMAC.
[4]
d) Explain transport mode and tunnel mode in IPSec.
[4]
e) Compare SSL and TLS.
[4]
PART - B
5 ? 8 Marks = 40
2.
Discuss about active attacks and passive attacks.
[8]
OR
3.
Explain the following:
a) Steganography
b) Polyalphabetic cipher
[4+4]
4.
Explain RSA algorithm in detail with relevant diagrams.
[8]
OR
5.
Explain AES algorithm in detail.
[8]
6.
Describe HMAC algorithm.
[8]
OR
7.
Explain Kerberos version 4 message exchanges for providing authentication.
[8]
8.
Explain the following related to S/MIME messages
a) EnvelopedData.
b) SignedData
c) ClearSigning
d) RegistrationRequest
e) Certificate-only Messages.
[8]
OR
9.a) Give a brief note on Encapsulating security payload.
b) Discuss about different combinations of security associations.
[4+4]
10.
Discuss in detail the messages exchanged between client and server during the
phase of SSL handshake protocol.
[8]
OR
11.
Discuss about virtual elections.
[8]
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This post was last modified on 17 March 2023