Academy of Maritime Education and Training 2008 B.C.A Computer Application Operating Systems - - Question Paper
1264/A24 MAY 2008
OPERATING SYSTEMS
Time : Three hours Maximum : 100 marks
PART A (6 x 5 = 30 marks)
Answer any SIX questions.
1. Discuss the need for the operating Bystem.
2. Explain I/O protection.
3. Write note on scheduling Queues.
4. Explain any two OS schedulers.
5. What are the necessary conditions for the occurrence of deadlock? Explain.
6. Explain in detail about the virtual memoiy.
7. Explain process control Block.
8. Discuss briefly the multiprogramming, L
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9. Explain any five DOS commands used to working with Directories. 10. Explain BSD Kernel I/O structure. PART B (4 x 10 = 40 marks) Answer any POUR questions. 11. Explain protection requirement for memory and 12. Explain how semaphore s may be used to enforce mutual exclusion. 13. Discuss the role of semaphore with an example. 14. Explain priority based pre-emptive scheduling algorithm. 15. Discuss various DOS commands UBed to work with files. 16. Describe briefly the history of Unix operating |
PART C - (2 x 15 = 30 marks) Answer any TWO questions. 17, (a) Discuss performance criteria for compi (b) Explain an one scheduling algorithm 18. (a) Explain Optimal replacement and Adhoc replacement algorithms. (b) Eiplain how information is Protected access. 19. (a) What do you mean by semaphore? Expli detail with suitable examples. (b) Explain various mechanisms that su distributed processing on Windows 2000, |
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| Earning: Approval pending. |
