Network Security 2018 Question Paper — Government College of Engineer…

The 2018 Network Security previous year question paper (Government College of Engineering and Technology, Jammu), with every question and its marks.

Instructions

Attempt five questions in all selecting at least two questions from each Section. Each question carries 20 marks.

Q1. (a) Define Network security. Discuss its significance in banking sector. (b) What are the key principles of information security? Explain it. (c) What are passive attacks? How do they differ with Active Attacks? [20 marks]
Q2. (a) Differentiate Substitution and transposition Cipher Techniques. Discuss the Rail Fence Algorithm with suitable example. (b) Explain Diffie - Hellman Key Exchange/Agreement Algorithm. Discuss in brief about Man in the Middle Attack? [20 marks]
Q3. (a) Explain in detail about DES - Symmetric Key Cryptography Algorithm. Differentiate Double - DES & Triple DES. (b) Discuss in brief the working principle of Steganography. [20 marks]
Q4. (a) Define Algorithm Type. Distinguish between Stream Cipher & Block Cipher. (b) Define Play - Fair Cipher. Explain its algorithm with example. [20 marks]

Q5. (a) RSA is a very popular Asymmetric Key Cryptography. Explain it. What is the real crux of RSA? (b) Explain the working procedure of Digital Signature. What is the important aspect that establishes trust in digital signatures? [20 marks]
Q6. Define Authentication Protocol. What is its principle role? Explain any two authentication protocols used for transferring data between clients - server environment. Discuss their merits and demerits. [20 marks]
Q7. (a) Define IP Security. Discuss its significance. Explain any one IP - SEC Protocol. (b) Describe any two protocols for implementing E - Mail Security. [20 marks]
Q8. Write short notes on the following: (a) VPN (b) Trojan Horse (c) IKE Protocol (d) WWW [20 marks]