Important Operating System questions.

1. What are the basic functions of an operating system?
2. Why paging is used?
3. What resources are used when a thread created? How do they differ from those when a process is created?
4. What is virtual memory?
5. What is Throughput, Turnaround time, waiting time and Response time?
6. What is the state of the processor, when a process is waiting for some event to occur?
7. What is the important aspect of a real-time system or Mission Critical Systems?
8. What are the types of Real Time System?
9. What is the difference between Hard and Soft real-time systems?
10. What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem?
11. What are multi tasking, multi programming and multi threading?
12. What is hard disk and what is its purpose?
13. What is fragmentation? Different types of fragmentation?
14. What is DRAM? In which form does it store data?
15. What is Dispatcher?
16. What is CPU Scheduler?
17. What is Context Switch?
18. What is cache memory?
19. What is a Safe State and what is its use in deadlock avoidance?
20. What is a Real-Time System?
21. What is MUTEX?
22. What is the difference between a ‘thread’ and a ‘process’?
23. What is Semaphore?
24. What is Marshalling?
25. Define and Explain COM?
26. What is INODE?
27. What are the different process states?
28. What is marshalling?
29. What is Mutex Object?
30. What is semaphore?
31. Explain Memory Partitioning, Paging, Segmentation.
32. What is the Condition for deadlock occurrence?
33. What are the Methods for Handling Deadlocks?
34. What is a Safe State and its? use in deadlock avoidance?
35. What is the usage of Deadlock Detection-Algorithm?
36. What are the different Dynamic Storage-Allocation methods?
37. What is fragmentation? Different types of fragmentation?
38. Under what circumstances do page faults occur? Describe the actions taken by the operating system when a page fault occurs?
39. What is the cause of thrashing? How does the system detect thrashing? Once it detects thrashing, what can the system do to eliminate this problem?
40. Describe different job scheduling in operating systems.
41. What is a Real-Time System?
42. What is the main component of operating system
43. Explain briefly about, processor, assembler, compiler, loader, linker and the functions executed by them.