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 atleast two questions from each section.

QQ1. a) Define OSI Security Architecture? Explain its classification. (10) b) Distinguish B/w Substitution Cipher Technique & Transposition Cipher Technique? Justify both giving one example of each. (10) [20 marks]
QQ2. a) Define DES Algorithm? Explain its working procedure? (10) b) Discuss in brief about Algorithm Mode? State & explain any one algorithm mode with diagram. (10) [20 marks]
QQ3. a) What is the Diffie Hellman Algorithm? Explain its key steps using example. (10) b) Define Cryptography? Explain its classification? What is the significance of cryptography in Cyber Security (10) [20 marks]
QQ4. a) Explain about Hash Based Message Authentication Code (HMAC). Why it is more secure than MAC. (10) b) What do you mean by Authentication Protocol? State & explain the technicality of Multifactor Authentication (MFA) in Information Security. (10) [20 marks]

QQ5. a) What are the different protocols used in network security for implementing E-Mail Security. Explain any one of them with diagram. (10) b) Define IP-Security? Explain its Protocol Architecture with diagram. (10) [20 marks]
QQ6. Define Firewall? List the characteristics of a good Firewall implementation. What are its different types? Enlist few limitations of Firewall. (20) [20 marks]
QQ7. a) What do you mean by VPN? How it works? Discuss the significance of VPN in today's network security scenario. (10) b) Define Virus? Explain different types of Viruses? How Virus differs from Trojan Horse Attack. (10) [20 marks]
QQ8. Write short notes about :- (5*4) i) Audit Records ii) Honeypots iii) Cyber Phishing iv) IKE Protocol [20 marks]