OPERATING SYSTEM NOVEMBER 2013

Month & Year of Examination: November 2013
                                                                  Part -A
1. What is mode bit?
2. Define: Protection.
 3. What is network operating system?
4. Define: Signal ( ) and Wait ().
5. Define process.
6. Define: Turnstile.
7. What is paging?
8. Define: TLB.
9. What is demand paging?
10. Define: Page-table.
11. What is interrupt?
12. Define: daisy chain
                                                             PART-B
13. Explain on storage-device hierarchy.
 14. Write about multiprocessor systems.
15. Write a note on "Semaphores".
 16. Explain the internal and external fragmentation.
17.  Describe the various access methods in file system.
18: Explain on two level and acyclic-graph directories.
19. Write about network devices and application I/O interface.
                                                             PART C
. 20. Explain in detail about storage management.
21. Explain on recovery from deadlock and detection of deadlock.
22. Describe the segmentation schemes and paging.
23. Explain the various file concepts in detail.
24. Discuss about I/O hardware in detail.