DISTANCE EDUCATION
M.Sc. Years Integrated) DEGREE EXAMINATION,
MAY 2017
OPERATING SYSTEMS
Time Three hours Maximum 100 marks
SECTION A — × 8 40 marks)
Answer any FIVE questions.
1. Explain the concept of Processes, Address spaces and
Files.
2. Describe the functioning of Layered systems, Client-
Server model and Virtual machines in OS structure.
3. Explain the concept of Race conditions, Critical regions,
Mutual exclusion and Semaphores in IPC.
4. Discuss on shortest Job First and Policy driven process
scheduling algorithms.
5. Describe the working principles of I/O hardware.
6. Explain the concept of Resources and Deadlock modeling.
7. Discuss on Multiprogramming without swapping or
paging, and with fixed partitions.
8. Describe the Disk Space management techniques.
Sub. Code
24
DE-734
2
WS 20
SECTION B — × 15 60 marks)
Answer any FOUR questions.
9. What is an Operating System? Discuss on the history of
Operating Systems.
10. Explain the Round-robin, Priority and Multiple queues
process scheduling algorithms.
11. Describe the features of I/O Software Layers.
12. Discuss on Deadlock Avoidance and Prevention
techniques.
13. Explain the concept of Virtual memory in detail.
14. Describe any four Page replacement algorithms.
15. Discuss on the basics of Files in detail.