OPERATING SYSTEM NOVEMBER 2011

Month & Year of Examination: November 2011
                                                          PART-A
1. What is API?
2. Define: system generation
3. List any four process states
4. Define: wait () semaphore.
5. What is locking protocol?
6. What is deadlock prevention?
7. Define: sharing.
8. What is segmentation?
9. Define: Hit ratio.
10. What is Interrupt chaining?
11. What is meant by software interrupt?
12. Define: STREAMS.
                                                        PART-B
13. Explain on threads and CPU schedulers.
14. Write a note on 'virtual machines'.
 15. Write about Deadlock characterization.
 16. Explain the dynamic loading and linking.
 17. .Write about Demand paying.
18. Describe• on file system structures and allocation methods.
 19. Explain on protection and encryption.
                                                        PART C
20. Explain the various types of system calls.
21. Describe the various methods for deadlocks avoidance.
22. Discuss in detail about non-contiguous allocation and hardware protection.
 23.  Describe on page replacement.
24.  Write about Kernel I/O sub systems.