Amrita Vishwa Vidyapeetham 2007 M.Sc Computer Science Operating Systems Mangement - Question Paper

M.Sc. May 2007
Operating Systems mangement
Time : 3 hours Maximum : 100 marks
PART A — (10 ? three = 30 marks)
ans ALL ques..
All ques. carry equal marks.
1. Define operating system.
2. Name any 3 widely used operating systems.
3. What is meant by semaphores?
4. Differentiate ranging from process and processor.
5. Why virtual memory is important?
6. List any 3 secondary storage devices.
7. How a file is defined?
8. Explain the concept of ENCRYPTION.
9. Give the expansion for FAT, CUI, GUI.
10. Name any 3 characteristics of windows operating system.
PART B — (4 ? 10 = 40 marks)
ans any 4 ques..
All ques. carry equal marks.
11. Explain on Multi programming and Time sharing.
12. Discuss briefly on system programs.
13. How scheduling algorithm is carried out in process management?
14. With example, explain on demand paging.
15. How security is provided for files?
16. Mention the special features of UNIX operating system.
PART C — (2 ? 15 = 30 marks)
ans any 2 ques..
All ques. carry equal marks.
17. Describe the architecture of the operating system. discuss its design and implementation phase.
18. What is a deadlock? How to prevent and avoid it?
19. Explain the concept of disk scheduling and explain on storage hierarchy.

Earning:   Approval pending.