Cryptography & Network Security Unit 5 – IP Security, Secure Transactions and System Security: AKTU previous year questions
12 AKTU questions from Unit 5 (IP Security, Secure Transactions and System Security) asked in 2025–2026, tagged by marks, year and topic. In short: about 22 marks of every paper come from this unit; the most asked topic is IP Security (11 times); 3 questions came back in a later year. The latest ones are listed below; on the page you can filter them by 2-mark or long questions, topic and repeats.
Unit 5 previous year questions
- List the function of dual signature. (2 marks, 2026, Secure Electronic Transaction (SET))
- Write requirement of padding in ESP. (2 marks, 2026, IP Security)
- Mention any two functions of a firewall. (2 marks, 2026, Firewalls)
- Explain IP security. Explain its architecture. (7 marks, 2026, IP Security)
- Explain IP Security architecture and its components. (7 marks, 2026, IP Security)
- Explain the following: (i) Intrusion detection. (ii) Firewall. (7 marks, 2026, Intrusion Detection)
- Describe SSL and Secure Electronic Transaction (SET). (7 marks, 2026, Secure Socket Layer)
- Explain the sequence of steps used in Secure Socket Layer Handshake Protocol for establishing a new session. Draw a diagram which shows the action of Handshake Protocol. (7 marks, 2026, Secure Socket Layer)
- Discuss intrusion detection systems, viruses, and the role of firewalls in network security. (7 marks, 2026, Intrusion Detection)
- Differentiate transport and tunnel mode in IPsec. (2 marks, 2025, IP Security)
- Distinguish between Logic Bomb and Trojan Horse (2 marks, 2025, Viruses and Related Threats)
- Explain the concept of IP security. Explain the role of AH and ESP. (10 marks, 2025, IP Security)
Most asked Unit 5 topics
- IP Security – asked 11 times
- Intrusion Detection – asked 7 times
- Secure Electronic Transaction (SET) – asked 6 times
Unit 5 question pattern
- 2-mark questions: 5 asked in 2025–2026
- 7-mark questions: 6 asked in 2025–2026
- 10-mark questions: 1 asked in 2025–2026
- About 22 marks from Unit 5 in every paper
- 3 questions were asked again in a later year
Unit 5 questions year by year
- 2026: 9 Unit 5 questions asked (48 marks across that year's papers)
- 2025: 3 Unit 5 questions asked (14 marks across that year's papers)