Friday, October 2, 2015

GNDU B.C.A. Computer Application Operating System 2007 Question Paper

Guru Nanak Dev University
B.C.A. Computer Application
Operating System
2007 Question Paper
Time:3 Hrs
Minimum Marks:100.
Note: Attempt any Five questions.All questions carry equal marks. [20 marks each]
1. (a) What do you mean by an Operating System and the importance of Operating system?
(b) Explain Time Sharing and Real Time Systems.
2. In some situations, a change in the state of one process may cause a change in state of another
process. Explain all such situations.
3. What do you mean by process scheduling? Explain priority based scheduling.
4. (a) What do you mean by paging? Distinguish between paging and segmentation.
(b) Discuss memory fragmentation.
5. (a) Explain page replacement policies.
(b) Explain Thrashing.
(c) Explain Swapping.
6. What are semaphores? What are the different types of semaphores and how are they implemented? How semaphore implement Mutual Exclusion?
7. Explain the following:
(a) Deadlock and Deadlock Avoidance.
(b) Disk Scheduling.
8. Write short note on:
(a) Virtual Memory
(b) Threads
(c) Distributed System
(d) Demand Paging.

Duraimani

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