DISTANCE EDUCATION
B.Sc. (CS)/B.Sc. (Lateral) DEGREE EXAMINATION,
MAY 2016.
OPERATING SYSTEMS
(2007 onwards)
Time Three hours Maximum 100 marks
Answer any FIVE questions.
All questions carry equal marks.
20 100)
1. Explain operating system concepts.
Explain the structure of operating system with neat
sketch.
2. Discuss about the various CPU scheduling algorithms.
3. Explain the various disk scheduling techniques with
an example.
Describe interrupt handlers.
4. Define deadlock. Explain in detail deadlock detection and
deadlock prevention.
5. Explain about contiguous memory allocation.
Explain the basic concepts of segmentation.
6. Explain the following page table structure:
Hierarchical page Table
Hashed Page table.
Explain the various page replacement strategies.
Sub. Code
33
DE-3403
2
hp-ap1
7. What are files and explain the access methods for
files?
Write notes about the protection mechanisms
provided for file servers.
8. Write short notes on the following:
Race condition
Device drivers
Virtual memory
Free space management.