BSc CS Sem 5 March 2025 March 2025 Information & Network Security Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2) Figures to the right indicate marks

1. Q3 Illustrations, in-depth answers and diagrams will be appreciated
2. Q4 Mixing of sub-questions is not allowed
3. Q1 Attempt ANY FOUR from the following: (20M)
   • (a) Discuss the X.800 Security Services?
   • (b) Write a short note on CIA Triad
   • (c) Explain Data Encryption Standard (DES) in detail
   • (d) Perform encryption and decryption using RSA Algorithm for the following
   • (e) With the help of an example, explain the Play fair cipher
   • (f) Write a short note on Steganography Attempt ANY FOUR from the following: (20M)
   • (a) Explain Diffie-Hellman Key Exchange
   • (b) Write a short note on the MDS algorithm
   • (c) What is Digital Signature? How does it work?
   • (d) Discuss the X.509 Certificate format
   • (e) State and explain any five applications of Cryptographic Hash Functions
   • (f) Write a short note on Public Key Distribution
4. Q3 Attempt ANY FOUR from the following: (20M)
   • (a) Explain the concepts and techniques of Intrusion Detection Systems
   • (b) Distributed Denial of Service
   • (c) Write a short note on Secure Electronic Transaction
   • (d) Explain the role of AH (Authentication Header) and ESP (Encapsulating (ec) Discuss different types of firewalls used in network security
   • (f) Write a short note on SSL
5. Q4 Attempt ANY FIVE from the following: (15M) Explain the following types of attacks:
   • i) Impersonation
   • ii) Espionage iii)
   • (b) What is Kerberos? Explain in brief
   • (c) is Virus? Describe different types of Viruses
   • (d) Explain the concept of Electronic Code Book (ECB)
   • (e) Explain SHA in brief
   • (f) Define the role of honeypots

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