DEGREE EXAMINATION, APRIL 2016
Second Semester
OPERATING SYSTEMS
(Common for M.C.A.(R)/WEP)
(2012 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 2 20)
Answer all questions.
All questions carry equal marks.
1. Define volatile and nonvolatile storage.
2. Define distributed system.
3. List out the process state.
4. Define preemptive and non-preemptive scheduling.
5. Define semaphore.
6. Write about deadlock prevention.
7. Define swapping.
8. Define first fit.
9. What is the use of raw disk?
10. What is constant angular velocity?
Sub. Code
541202/
545202
RW-10778
2
hp-ap1
Part B 5 25)
Answer all questions, choosing either or
All questions carry equal marks.
11. Explain about I/O structure.
Or
Describe the operating system services.
12. Describe the operations on process.
Or
Explain about scheduling criteria.
13. Describe the usage of semaphores.
Or
Explain about recovery from deadlock.
14. Discuss about basic concept of paging.
Or
Describe the file system mounting.
15. Describe the overview of directory.
Or
Explain about disk management.
RW-10778
3
hp-ap1
Part C 10 30)
Answer any three questions.
All questions carry equal marks.
16. Explain the structure of OS.
17. Describe the shortest job first scheduling with an
example.
18. Describe the classic problems of synchronization.
19. Explain about contiguous memory allocation.
20. Describe the different types of allocation methods.