Model Question Paper

Subject: Operating Systems

(Common to CSE & IT)

Time: 3 Hours

Max. Marks: 75

Note: Answer any FIVE questions. All questions carry equal marks.

1. a) What is an Operating system?

   b) Explain different types of operating systems with neat diagrams.

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2. a) What is a process? Explain different states of the process with a neat diagram.

   b) Explain different types of schedulers.

3. a) What is meant by critical section problem?

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   b) Explain the Banker’s algorithm with an example.

4. a) What is paging?

   b) Differentiate between paging and segmentation.

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5. a) Explain different file allocation methods.

   b) Explain different file access methods.

6. a) What is disk scheduling?

   b) Explain different disk scheduling algorithms.

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7. a) What is the use of Access matrix?

   b) Explain different methods of implementing the Access matrix.

8. Write short notes on the following:

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   1. Virtual Memory
   2. Deadlock Prevention
   3. Directory Structure

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