Computer Networks Unit 1 – Introductory Concepts and Physical Layer: important questions for AKTU
Unit 1 (Introductory Concepts and Physical Layer) questions that AKTU repeats most often. This unit carries about 32 marks per paper. Start with the repeated questions, then the most asked topics.
Most repeated Unit 1 questions
- Name and explain Network Devices on each layer of OSI Model. (10 marks, 2024, Network Architecture and Protocols) – also asked in 2018, 2019, 2022, 2023, 2025
- Describe all the layers of the OSI model with a well-labeled diagram. (10 marks, 2023, Network Architecture and Protocols) – also asked in 2018, 2019, 2022, 2024, 2025
- Describe the role of application layer and session layer of OSI model in detail. (10 marks, 2022, Network Architecture and Protocols) – also asked in 2018, 2019, 2023, 2024, 2025
Most important Unit 1 topic
- Physical Layer Transmission (Unit 1: Introductory Concepts and Physical Layer) – asked 21 times in 2018, 2019, 2022, 2023, 2024, 2025
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
More 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)
Unit 1 syllabus topics
- Network Goals and Categories
- Network Architecture and Protocols
- Network Devices and Components
- Physical Layer Transmission
- Switching and Multiplexing