Operating System Unit 2 – Concurrent Processes: AKTU previous year questions
24 AKTU questions from Unit 2 (Concurrent Processes) asked in 2018–2025, tagged by marks, year and topic. In short: about 23 marks of every paper come from this unit; the most asked topic is Mutual Exclusion (8 times); 11 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 2 previous year questions
- What is the difference between a process and a program? (2 marks, 2025, Process Concept and Concurrency)
- In a Producer-Consumer system, the buffer size is 4. If Producer produces 6 items and Consumer consumes 3, find the number of items in the buffer at the end. (2 marks, 2025, Process Concept and Concurrency)
- A process executes the following code: fork(); fork(); fork(); How many processes are created in total, including the original? (2 marks, 2025, Inter Process Communication)
- Define the Critical Section Problem and list the conditions that a solution must satisfy. (7 marks, 2025, Mutual Exclusion)
- Discuss the limitations of Dekker's and Peterson's solutions when applied to modern multiprocessor architectures. (7 marks, 2025, Mutual Exclusion)
- Define the principle of concurrency? (2 marks, 2024, Process Concept and Concurrency)
- Explain the challenges of achieving mutual exclusion in concurrent programming? (7 marks, 2024, Mutual Exclusion)
- Compare and contrast Dekker's and Peterson's algorithms for mutual exclusion, considering their advantages and limitation? (7 marks, 2024, Mutual Exclusion)
- Define the term busy waiting. (2 marks, 2023, Mutual Exclusion)
- Define semaphore and its types. (2 marks, 2023, Semaphores and Test Set)
- Explain producer consumer problem and its solution using semaphore. (10 marks, 2023, Process Concept and Concurrency)
- Explain dinning philosopher problem and its solution using semaphore. (10 marks, 2023, Classical Concurrency Problems)
Most asked Unit 2 topics
- Mutual Exclusion – asked 8 times
- Process Concept and Concurrency – asked 6 times
- Semaphores and Test Set – asked 4 times
Unit 2 question pattern
- 2-mark questions: 9 asked in 2018–2025
- 7-mark questions: 10 asked in 2018–2025
- 10-mark questions: 5 asked in 2018–2025
- About 23 marks from Unit 2 in every paper
- 11 questions were asked again in a later year
Unit 2 questions year by year
- 2025: 5 Unit 2 questions asked (20 marks across that year's papers)
- 2024: 3 Unit 2 questions asked (16 marks across that year's papers)
- 2023: 4 Unit 2 questions asked (24 marks across that year's papers)
- 2022: 4 Unit 2 questions asked (32 marks across that year's papers)
- 2019: 3 Unit 2 questions asked (21 marks across that year's papers)
- 2018: 5 Unit 2 questions asked (25 marks across that year's papers)