B.Sc-B.Sc Computer Science OPERATING SYSTEMS(Alagappa University - Directorate of Distance Education-2012)

DISTANCE EDUCATION
B.Sc. (C.S.)/B.Sc. (C.S.) (Lateral) DEGREE EXAMINATION, MAY 2012.
OPERATING SYSTEMS
(2007 onwards)
Time : Three hours Maximum : 100 marks
Answer any FIVE questions.
All questions carry equal marks.
(5 × 20 = 100)
1. (a) What is an operating system? Explain. (10)
(b) Discuss in detail about system calls. (10)
2. (a) Explain about interprocess communication in detail. (10)
(b) Discuss about round robin scheduling. (10)
3. (a) Write a detailed note on deadlock prevention and avoidance. (10)
(b) Discuss the goals of I/O software. (10)
4. (a) Explain in detail about virtual memory. (10)
(b) Discuss memory management without swapping or paging. (10)
5. (a) How to improve the reliability and performance in file management? (10)
(b) Explain about file servers, security and its protection mechanisms. (10)
6. (a) Explain the concepts of operating system in brief.(10)
(b) Differentiate between process, processes and processors. (10)
7. (a) Write a detailed note on interrupt handlers. (10)
(b) Discuss on multiprogramming with fixed partitions. (10)
8. (a) Discuss on file system reliability and performance. (10)
(b) What is meant by policy driven scheduling? Explain with an example. (10)

Earning:  ₹ 3.20/-