M.C.A. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2017.
Fifth Semester
INFORMATION SECURITY
2 90255 A
Time 3 Hours Max. Marks 60
SECTION — A
Answer any FIVE questions. 4 20 Marks)
Each question carries 4 marks.
1. Explain Security Systems Development Life Cycle.
2. Explain about approaches to Information Security Implementation.
3. Explain about symmetric key ciphers.
4. Explain about Diffie-Helman Key exchange.
5. Explain about Authentication requirements and functions.
6. Explain about Digital Signatures.
7. Explain about IPSec.
8. Explain about different types of Firewalls.
SECTION — B
Answer ONE question from each Unit. 10 40 Marks)
Each question carries 10 marks.
UNIT I
9. Explain about the components of an Information System.
Or
10. Explain about the balancing Information Security and Access.
Explain about CNSS security model.

UNIT II
11. Explain about DES structure and variants of DES.
Or
12. Explain about RSA algorithm and analysis.
UNIT III
13. Explain about Secure Hash Algorithms.
Or
14. Explain about Kerberos.
UNIT IV
15. Explain about Secure Socket Layer.
Or
16. Explain about Pretty Good Privacy.
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