Madras University (UnOM) 2008 B.C.A Computer Application operating system - Question Paper

NOVEMBER 2008 46408/PK3D

Time : 3 hours Maximum : [100 marks]

PART A - [10 * three =30 marks]
ans any TEN ques..
All ques. carry equal marks.
every ans should not exceed 50 words.

1. What do you mean by Real time system?

2. Write the advantages of multiprogramming.

3. elaborate the necessary conditions for deadlock?

4. What do you mean by semaphore?

5. When does mutual exclusion neet to be enforced?

6. Illustrate the external and internal fragmentation.

7. describe Segmentation.

8. Write about overlays.

9. provide the structure of file system.

10. What do you mean by Access Control Matrix?

11. What is SPOOLING?

12. What is threat monitoring?

PART B - [5 * six =30 marks]
ans any 5 ques..
All ques. carry equal marks.
every ans should not exceed 200 words.

13. elaborate the various performance criteria for CPU scheduling algorithms?

14. discuss the life cycle of a process with neat diagram.

15. discuss the PCB in detail.

16. What is deadlock? How can you avoid it?

17. What is page fault? When do page faults occur?

18. explain about Virtual memory.

19. explain on different operations of a file.

PART C - [4 * 10 = 40 marks]
ans any 4 ques..
All ques. carry equal marks.
every ans should not exceed 500 words.

20. define the essential properties of the subsequent operating systems :
(a) Batch
(b) Time-sharing
(c) Distributed.

21. define the interprocess communication.

22. explain the Banker's algorithm for deadlock avoidance in detail.

23. discuss the segmentation technique with the necessary diagrams.

24. discuss different file access methods.

25. define the most common schemes for designing the logical structure of a directory.

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Earning:   Approval pending.