BSc IT Sem 5 Network Security Question Paper PDF 2026 - Mumbai University | munotes

Questions asked in this paper

1. Q1 Attempt of the following: 10 marks
   • a. Write a short note on principles of security
   • b. simple columnar transposition technique with example
   • c. Explain Caesar cipher and modified version of Caesar cipher
   • d. & explain all possible types of attacks on messages
2. Q2 Attempt of the following: 10 marks
   • a. Explain Algorithm Types in detail
   • b. a short note on DES algorithm
   • c. AES in detail
   • d. Write a short note on RCS working
3. Q3 Attempt of the following: 10 marks
   • a. Explain man-in-the-middle attack
   • b. | Write a short note on digital signatures Write a short note on SHA algorithm
   • d. Write down differences between MD5 and SHA-1
4. Q4 Attempt of the following: 10 marks
   • a. What are the steps involved in creating digital certificates?
   • b. Write a short note on ways of protecting private keys
   • c. What are the PKIX services? Explain in detail
   • d. Write a short note on digital certificate revocation checks
5. Q5 Attempt of the following: 10 marks
   • a. Write a short note on TCP/IP protocol suite
   • b. What are the types of firewalls?
   • c. | What are two modes in which IPSec operates?
   • d. Write a short note on SSL
6. Q6 Attempt of the following: 10 marks
   • a. How password authentication mechanism works?
   • b. Write a short note on certificate based authentication
   • c. | What are the types of biometric authentication?
   • d. Explain KDC in detail
7. Q7 Attempt any three of the following: 15 marks
   • a. following terms :
   • b. blowfish encryption & decryption in detail
   • c. Differentiate between Symmetric & Asymmetric key cryptography
   • d. What are the PKCS standards?
   • e. Write a short note on PGP
   • f. | What is Mutual Authentication? Explain the implementation ways

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