2005 Madras University B Sc Computer Science operating system Question paper for exam preparation. Question paper for 2005 Madras University B Sc Computer Science operating system Question paper, 2005 Madras University B Sc Computer Science operating system Question paper. SiteMap
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2005 Madras University B Sc Computer Science operating system Question paper

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2005 Madras University B Sc Computer Science operating system Question paper
PART A - (10 x 3 = 30 marks)

Answer any TEN questions.All questions carry equal marks.

Each answer should not exceed 50 words.

1. List out the common services provided by the operating system.

2.Describe the states of a process.

3. What do you mean by interprocess communication?

4.What is a monitor? Give its syntax.

5.What are external and internal fragmentations?

6.What is paging?

7.List out the various common file types.

8.List out the file allocation methods in disk space.





9. What are the various types of I/O devices classified on their characteristics?

10. Define a bit map and give its use.

11.What are the goals of protection?

12. What is encryption? Explain the mechanism followed for it?



PART B - (5 x 6 = 30 marks)

Answer any FIVE questions. All questions carry equal marks.

Each answer should not exceed 200 words.

13. Describe how hardware protection are handled in a system.

14. Explain the various criteria considered for CPU scheduling.

15. Describe how mutual exclusion is implemented with test-and-set and swap instructions.

16. Explain the segmentation memory management scheme.

17. Write a note on thrashing.

18.Describe the various disk scheduling algorithms.

19. Explain the various methods of implementation of access matrix.



PART C - (4 x 10 = 40 marks)

Answer any FOUR questions. All questions carry equal marks.

Each answer should not exceed 500 words.

20. Discuss the various types of operating systems.

21. Describe any five CPU scheduling algorithms.

22. Explain the Banker's algorithm for deadlock avoidance with an example.

23.Describe any four page replacement algorithms.

24. Discuss the various schemes for defining the logical structure of a directory.

25.Write short notes on :

(a) Worms (b)Viruses and (c)Threat monitoring.



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2005 Madras University B Sc Computer Science operating system Question paper for exam preparation. Question paper for 2005 Madras University B Sc Computer Science operating system Question paper, 2005 Madras University B Sc Computer Science operating system Question paper