Osmania University (OU) 2009 M.Sc Computer Science Modern Operating System - exam paper

Faculty of Science
M.Sc I Semester Examination, April/May 2009
Computer Science Paper 1.2
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Modern Operating System

ans all the ques..

part - A (Marks : eight X four = 32)
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1. What is PCB? explain briefly?
2. What is priority scheduling? discuss with an example.
3. What is thrashing? What is its use?
4. What is SCAN scheduling? discuss with an example.
5. discuss how domain is protected.
6. What is authentication in security?
7. discuss security features in management.
8. What is recovery? discuss.


part - B (Marks : four X 12 = 48).
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9. (a) discuss the distributed system architecture and various problems involved in it.

(OR)

(b) What is dead lock? discuss Banker's algorithm with an example.

10 (a) What is paging? discuss hardware structure of paging.

(OR)

(b) discuss (i) Thread Scheduling (ii) Directory structure.

11. (a) discuss in detail how does windows handle process.

(OR)
(b) What is 2 pahse protocol? discuss in detail.

12. (a) (i) discuss about network management in Unix.
(ii) Write about backup devices.

(OR)

(b) What is network file system? discuss the file structure at both server and clients.

Earning:   Approval pending.