Operating System MCQs with Answers
Practice important Operating System MCQs with answers and explanations.
Multiple Choice Questions
Q681: Starvation in dining philosophers means ________.
- A: philosopher never gets to eat
- B: philosopher sleeps
- C: philosopher always eats first
- D: philosopher eats once
View Answer
A
Q682: If all philosophers pick the right chopstick first, ________ occurs.
- A: starvation
- B: deadlock
- C: parallelism
- D: preemption
View Answer
B
Q683: In resource allocation graphs, what does an edge from Rj to Pi signify?
- A: Pi waiting for Rj
- B: Rj allocated to Pi
- C: Pi denied Rj
- D: Rj deleted by Pi
View Answer
B
Q684: A system model must satisfy ________ to ensure correct resource handling.
- A: resource preemption
- B: resource partition
- C: process duplication
- D: unlimited resource request
View Answer
B
Q685: System resources like CPU cycles and disk drives are examples of ________.
- A: resource classes
- B: instances
- C: deadlocks
- D: preemption
View Answer
A
Q686: The sequence used by a process when utilizing a resource is _______.
- A: Use → Request → Release
- B: Request → Use → Release
- C: Release → Request → Use
- D: Use → Release → Request
View Answer
B
Q687: In deadlock characterization, the "Hold and Wait" condition implies _______.
- A: processes hold one resource only
- B: processes wait without holding any resource
- C: processes hold one and wait for others
- D: processes release all resources while waiting
View Answer
C
Q688: The initial state of all philosophers in init() function is _______.
- A: eating
- B: thinking
- C: hungry
- D: waiting
View Answer
B
Q689: In the deadlock example with semaphores, which two semaphores are used?
- A: A and C
- B: A and B
- C: B and D
- D: A and D
View Answer
B
Q690: In the dining philosophers monitor code, the function pickup(int i) does what?
- A: Releases chopsticks
- B: Picks up one chopstick
- C: Tries to eat or waits
- D: Signals neighbor
View Answer
C