Algorithm MCQs

1. What is the Critical Section Problem?

a) A problem where multiple processes compete for shared resources b) A problem where processes cannot communicate with each other c) A problem where processes deadlock d) A problem where processes starve

2. Which of the following is a solution to the Critical Section Problem?

a) Peterson's Algorithm b) Semaphores c) Mutex Locks d) All of the above

3. What is a semaphore?

a) A synchronization tool b) A hardware device c) A type of process d) A memory management technique

4. What is the initial value of a binary semaphore?

a) 0 b) 1 c) -1 d) 2

5. What are concurrent processes?

a) Processes that execute simultaneously b) Processes that execute one after another c) Processes that do not share resources d) Processes that are independent

6. What is the main purpose of cooperating processes?

a) To share resources and information b) To execute independently c) To avoid synchronization d) To increase CPU utilization

7. What is a precedence graph?

a) A graph showing the order of process execution b) A graph showing memory allocation c) A graph showing CPU usage d) A graph showing process priorities

8. Which of the following is true about the Critical Section Problem?

a) It ensures mutual exclusion b) It ensures progress c) It ensures bounded waiting d) All of the above

9. What is the purpose of the "wait" operation in semaphores?

a) To decrement the semaphore value b) To increment the semaphore value c) To block a process d) To terminate a process

10. What is the purpose of the "signal" operation in semaphores?

a) To decrement the semaphore value b) To increment the semaphore value c) To block a process d) To terminate a process

11. What is a race condition?

a) A situation where the output depends on the sequence of process execution b) A situation where processes deadlock c) A situation where processes starve d) A situation where processes execute independently

12. What is the main advantage of cooperating processes?

a) They can share data and resources b) They execute independently c) They avoid synchronization d) They increase CPU utilization

13. What is the primary use of a precedence graph?

a) To represent the order of process execution b) To represent memory allocation c) To represent CPU usage d) To represent process priorities

14. Which of the following is a disadvantage of semaphores?

a) They can lead to deadlocks b) They are difficult to implement c) They require hardware support d) They are not scalable

15. What is the main purpose of mutual exclusion in the Critical Section Problem?

a) To ensure only one process executes the critical section at a time b) To allow multiple processes to execute the critical section simultaneously c) To prevent processes from communicating d) To increase CPU utilization

Operating Systems MCQs

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