Computer Networks Unit 3 – Network Layer: important questions for AKTU
Unit 3 (Network Layer) questions that AKTU repeats most often. This unit carries about 37 marks per paper. Start with the repeated questions, then the most asked topics.
Most repeated Unit 3 questions
- A company is assigned the address block 192.168.10.0/24. Divide it into 4 subnets and specify subnet ranges. (7 marks, 2025, Logical Addressing and Subnetting) – also asked in 2018, 2019, 2022, 2023, 2024
- Discuss how the count-to-infinity problem occurs in Distance Vector Routing. Suggest any one method to mitigate it. (7 marks, 2025, Routing and Forwarding) – also asked in 2018, 2019, 2022, 2023, 2024
- Explain all Interdomain and Intradomain routings algorithms. (10 marks, 2024, Routing and Forwarding) – also asked in 2018, 2019, 2022, 2023, 2025
Most important Unit 3 topic
- Routing and Forwarding (Unit 3: Network Layer) – asked 13 times in 2018, 2019, 2022, 2023, 2024, 2025
Most asked Unit 3 topics
- Routing and Forwarding – asked 13 times
- Logical Addressing and Subnetting – asked 11 times
- Congestion Control – asked 9 times
More Unit 3 previous year questions
- List various policies that are used for congestion control. (2 marks, 2025, Congestion Control)
- Define Leaky Bucket Algorithm. How does Token Bucket Algorithm provide better traffic shaping control? (7 marks, 2025, Congestion Control)
- For the following subnet, distance vector routing is used and the vectors that have just come into router C: from B: (5, 0, 8, 12, 6, 2); from D: (16, 12, 6, 0, 9, 10); and from E: (7, 6, 3, 9, 0, 4). The measured delays to B, D and E are 6, 3, and 5 respectively. Calculate C's new routing table. Give both the outgoing line to use and the expected delay. (7 marks, 2025, Routing and Forwarding)
- Explain new features in IPv6 over IPv4. What is the purpose of multiple headers? Explain in brief, how IPv6 handles multiple headers. (7 marks, 2025, IPv6)
- Explain the following: (i) RARP (ii) DHCP (iii) VPN (7 marks, 2025, Internetworking Protocols)
Unit 3 syllabus topics
- Logical Addressing and Subnetting
- Internetworking Protocols
- Routing and Forwarding
- Congestion Control
- IPv6