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OPERATING SYSTEM

16 MARKS QUESTIONS

1.Describe the Operating system structure.

2.Describe about(i) Mainframe Systems.

(ii) Desktop Systems.

3.Explain about(i) Multiprocessor Systems.(ii) Distributed Systems.

4.Discuss about(i).Clustered Systems.(ii).Handheld Systems.

5. Explain about Hardware protection methods.

6.Describe about System Components.

7.Explain about common System Calls available.

8.Discuss about(i) Operating System Services(ii) System Programs.

9.Explain about System Structure with neat diagram

10.What is a Virtual Machine? How it is implemented and what are its benefits.

11.What is a process? Describe the various states the process can traverse?

12. (i) Briefly explain the critical section ? Describe the different solutionavailable to avoid

race conditions ?(ii) How to enhance Mutual exclusion?

13.What is semaphore? Describe how it enhances concurrency?

14. What is scheduling? Why is it necessary? Describe the various processscheduling

algorithms available ?

15. What is Deadlock? What are the four conditions necessary for deadlock?How it can be prevented ?

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16. How Deadlock can be avoided? Explain Banker's algorithm with anexample?

17. How Deadlock can be detected and recovered, describe? Explain whyrecovery from

deadlock is difficult ?.

18.Explain about Synchronization Hardware

19.Explain in detail about Inter-process Communication.

20. What is meant by CPU Scheduling? Explain the various schedulingalgorithms available.

21. (i). Describe Multiple - processor Scheduling.(ii) Discuss Real -time Scheduling.

22.Explain about swapping concept.

23. Explain about Paging with neat diagram

24. Explain about Segmentation with neat diagram

25.Discuss the various address translation mechanism in paging?

26. Discuss the various address translation mechanism available inSegmentation?

27. Describe about Contiguous memory Allocation concept.

28. Explain about Segmentation with paging.

29. Explain about Virtual Memory Concept with neat diagram.

30. Explain about Demand Paging with example.

31. Explain the basic scheme of Page replacement and about the various Pagereplacement

strategies.32.Discuss about

(i) File System Mounting(ii) Thrashing

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33.Explain the following File concepts:(i) File Attributes.(ii) File Operations.(iii) File Types .(iv) Internal File Structure.

34. Explain the Various Directory structures available

35. What is meant by file sharing? What are the criteria to be followed in systemswhich

implement this file sharing?

36. (i) Describe the various File Access methods available.(ii) Explain the File-System Structure.

37. Explain about Various File Operations available.

38. Explain about various Allocation methods in Files structure.

39. Describe the following Directory Implementation methods:(i) Linear List(ii) Hash Table

40. (i) What are the Recoveries can be done to prevent System failure ?(ii) Explain about Free Space Management.

41. What is meant by Disk Scheduling? Explain the various Scheduling available.

42. Discuss about(i) Disk Management(ii) Swap -Space Management

43. Explain about Security system in Unix system.