Computer Networks Unit 1 – Introductory Concepts and Physical Layer: AKTU previous year questions
33 AKTU questions from Unit 1 (Introductory Concepts and Physical Layer) asked in 2018–2025, tagged by marks, year and topic. In short: about 32 marks of every paper come from this unit; the most asked topic is Physical Layer Transmission (21 times); 26 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 1 previous year questions
- Determine the number of links needed for a fully connected mesh topology with 10 nodes. (2 marks, 2025, Physical Layer Transmission)
- A signal is transmitted with an initial power of 2W and experiences an attenuation of -3 dB. Calculate the received power. (2 marks, 2025, Physical Layer Transmission)
- List the functions of all layers in OSI reference model using a well labelled diagram. (2 marks, 2025, Network Architecture and Protocols)
- A 4 MB frame is transmitted over a 1000 KM link with 2 Mbps bandwidth. Propagation speed is 2x10^8 m/s. Compute total delay (latency) if there are 5 routers, each with 1 us processing and 2 us queuing delay. (7 marks, 2025, Physical Layer Transmission)
- What are the applications of Computer Networks? (2 marks, 2024, Introduction to Computer Networks)
- Write advantages and disadvantages of Mesh Topology. (2 marks, 2024, Physical Layer Transmission)
- Define TCP/IP Model in detail. (10 marks, 2024, Network Architecture and Protocols)
- Name and explain Network Devices on each layer of OSI Model. (10 marks, 2024, Network Architecture and Protocols)
- Define various topologies with diagram, features, and pros-cons. (10 marks, 2024, Physical Layer Transmission)
- Explain the differences between point to point and point to multipoint. (2 marks, 2023, Physical Layer Transmission)
- Define bit rate and baud rate. (2 marks, 2023, Physical Layer Transmission)
- Compare OSI with TCP/IP protocol suit. (2 marks, 2023, Network Architecture and Protocols)
Most asked Unit 1 topics
- Physical Layer Transmission – asked 21 times
- Network Architecture and Protocols – asked 9 times
- Network Goals and Categories – asked 3 times
Unit 1 question pattern
- 2-mark questions: 16 asked in 2018–2025
- 7-mark questions: 4 asked in 2018–2025
- 10-mark questions: 13 asked in 2018–2025
- About 32 marks from Unit 1 in every paper
- 26 questions were asked again in a later year
Unit 1 questions year by year
- 2025: 4 Unit 1 questions asked (13 marks across that year's papers)
- 2024: 5 Unit 1 questions asked (34 marks across that year's papers)
- 2023: 7 Unit 1 questions asked (38 marks across that year's papers)
- 2022: 7 Unit 1 questions asked (46 marks across that year's papers)
- 2019: 4 Unit 1 questions asked (23 marks across that year's papers)
- 2018: 6 Unit 1 questions asked (36 marks across that year's papers)