DISTANCE EDUCATION
M.Sc. (Computer Science) DEGREE EXAMINATION,
MAY 2017.
OPERATING SYSTEMS
(2007 onwards)
Time Three hours Maximum 100 marks
SECTION A — (10 3 30 marks)
Answer ALL questions.
1. Define clustered systems.
2. Define system utilities.
3. Mention the concept of Thread.
4. What is Starvation?
5. What is meant by fragmentation?
6. Define thrashing.
7. List the common attributes of a file.
8. What is the purpose of backup?
9. Write the function of fault tolerance.
10. List the components of a Linux system.
Sub. Code
25
DE-495
2
SER
SECTION B — 10 40 marks)
Answer any FOUR questions.
11. Explain the purpose of system programs.
12. Describe the features of deadlock characterization.
13. Explain the basic concepts of demand paging.
14. Explain the purpose of the open and close operations
performed on files.
15. Discuss on the directory implementation of the file
system.
16. Compare and contrast stateful services with stateless
services in distributed operating system.
SECTION C — 15 30 marks)
Answer any TWO questions.
17. Describe in detail CPU-scheduling algorithms.
18. Discuss about several access methods.
19. Explain the design issues in distributed operating
system.