Alagappa University 2007 M.Sc Computer Science OPERATING SYSTEMS - Question Paper

part A — (10 ? three = 30 marks)
ans ALL the ques..
1. What is system calls? List out different category of system calls.
2. What is the CMS? Write its function.
3. When will race condition occur? provide an example.
4. Explain the short job 1st scheduling algorithm.
5. What is the concept of inter leaving? provide few examples.
6. What are the sequence of events needed to use a resource? How do you implement it?
7. What is the memory compaction?
8. Write the difference ranging from internal fragmentation and external fragmentation.
9. Explain the concept of aging?
10. What is system reliability?
part B — (4 ? 10 = 40 marks)
ans any 4 ques..
11. Explain the structure of monolithic operating system.
12. What are the different methods used to setup mutual Exclusive?
13. List out a few goals of I/O software.
14. What do you understand about multiprogramming variable paritions? discuss them.
15. Explain with an example for Buddy System.
16. Describe Disk arm scheduling algorithm with an example.
part C — (2 ? 15 = 30 marks)
ans any 2 ques..
17. Describe the history of operating system.
18. Explain the Banker’s algorithm for multiple resource in order to avoid dead lock.
19. What is meant by paging? How do you implement paging?

Earning:   Approval pending.