Osmania University (OU) 2007 M.Sc Computer Science Modern Operating Systems - Question Paper

M.Sc I-Semester Examination, NovDec 2007
Modern Operating Systems
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part A (Marks : eight X four = 32)
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1. discuss briefly the critical part issue.
2. discuss various process states.
3. What is thrashing? What is it required?
4. Write page replacement and why is it required?
5. discuss any 2 failure classifications in detail.
6. What is log? discuss its role in serializability.
7. discuss about kernel and demons in Unix System.
8. Write ps Commands with its field structure and example.

part -- B (Marks: four X 12 = 32)
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9. (a) What is deadlock? discuss prevention and recovery measures.

(OR)
(b) discuss the distributed system architecture and various problems involved in it.

10. (a) What is thread? discuss various levels of threads used in distributed operating system.

(OR)

(b) elaborate the differences ranging from paging and segmentation? discuss their uses in detail.

11. (a) What is a protocol? discuss 2 phase commit protocol in detail.

(OR)

(b) elaborate various security facilities available in windows and Unix system.

12. (a) What is the necessity of a backup? discuss various medias used for system backup.

(OR)

(b)(i) Write the procedure for disk installation in Unix System.
(ii) discuss about ps command and field values available while using it.

Earning:   Approval pending.