DISTANCE EDUCATION
M.Sc. (Computer Science) DEGREE EXAMINATION,
MAY 2016
OPERATING SYSTEMS
(2007 Onwards)
Time Three hours Maximum 100 marks
SECTION A — (10 3 30 marks)
Answer ALL questions.
1. How to handle system calls?
2. Mention the components of the operating system.
3. How inter process communication takes place?
4. Define threads.
5. What is meant by swapping?
6. Define virtual memory.
7. List the file concepts.
8. Give the purpose of a directory.
9. Define distributed file system.
10. Give an example for mutual exclusion event.
SECTION B — × 10 40 marks)
Answer any FOUR questions.
11. Discuss the services rendered by an operating system.
12. Mention the basic concept of CPU scheduling.
Sub. Code
25
DE-3682
2
sp4
13. How to avoid deadlock?
14. Explain the technique of implementing directory.
15. Discuss the methodology of segmentation with paging.
16. How naming and transparency is maintained in
distributed operating system?
SECTION C — 15 30 marks)
Answer any TWO questions.
17. How to solve the critical section problem in process
management?
18. Explain the following strategies in memory management
Paging
Demand paging
19. How deadlock is handled in distributed operating system?