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

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2005 Madras University M Sc Computer Science operating system Question paper
PART A - (5 x 2 = 10 marks)

Answer ALL questions.

All questions carry equal marks. Each answer should not exceed 50 words.

1.How do you compare CPU scheduling algorithms?

2.Define semaphore.

3.What is meant by thrashing?

4.What is the need for file protection?

5.List some of file system commands used in UNIX.



PART B - (4 x.5 = 20 marks)

Answer any FOUR questions. All questions carry equal marks.

Each answer should not exceed 250 words.



6. Compare short term, medium term, long term scheduling.

7. What is deadlock? Discuss the process of deadlock avoidance.

8. Explain about paging mechanism.

9. Discuss the different file operations in detail.

10. Describe any two, disk scheduling algorithms.

11.Write a note on shell programming.



PART C - (5 x 10 = 50 marks)

Answer ALL questions. All questions carry equal marks.

Each answer should not exceed 500 words.



12. (a) Define the essential properties of the following type of operating systems.

(i) Batch

(ii) Interactive

(iii)Time sharing

(iv)Real time

(v) Network.

Or

(b) (i) What is the need for an OS? Discuss.

(ii) Discuss any two scheduling algorithms.



13.(a)Explain the deadlock prevention mechanism.

Or

(b) (i) Explain the requirements for mutual exclusion also discuss the software approach and hardware support for mutual exclusion.



(ii) Explain in detail P and V operations on counting semaphores for process synchronization.



14.(a)Explain in detail about virtual memory.

Or

(b) Explain about various types of disk scheduling.



15.(a) (i) Discuss the need for file protection. (ii) Discuss anyone file access methods.

Or

(b) (i) Discuss one issue of reliability in file systems consistency.

(ii) Explain the various, approaches implementing shared file and subdirectories.

16. Explain the file system of UNIX.



Or

Discuss in detail about memory management in DOS


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