IBPS SO IT Officer Operating Systems Quiz 2026, FREE PDF & Live Quiz

1. Which operating-system paradigm presents multiple networked computers/processors as a coordinated system and distributes computation across them?

2. During a context switch between processes, which hardware/software effect can add substantial overhead on many systems?

3. Imposing a strict global ordering on resource acquisition directly prevents which Coffman deadlock condition?

4. A system has 10 instances of resource R. P1 holds 3, P2 holds 2, and P3 holds 2. How many instances are currently available?

5. What process-state transition normally occurs when a running process requests blocking I/O?

6. What process-state transition occurs when the requested I/O completes?

7. In preemptive scheduling, the OS may move a process from Running to Ready when:

8. Which scheduling algorithm selects the process with the smallest next CPU burst and can starve long jobs?

9. Which scheduling algorithm is the preemptive form of SJF?

10. Which scheduling algorithm is strongly associated with a fixed time quantum?

11. External fragmentation is most strongly associated with:

12. Internal fragmentation occurs when:

13. Paging primarily eliminates which type of fragmentation?

14. A page fault occurs when:

15. Which page-replacement algorithm can exhibit Belady’s anomaly?

16. Which page-replacement algorithm replaces the page that has not been used for the longest time?

17. Thrashing refers to:

18. Which mechanism lets processes share a region of memory and is generally one of the fastest IPC methods after setup?

19. A semaphore initialized to 1 is commonly used as:

20. Which condition means a process may hold allocated resources while waiting for additional resources?