COMPUTER SCIENCE AND ENGINEERING DIPLOMA EXAM QUESTION PAPERS

  • KARNATAKA STATE OPEN UNIVERSITY - COMPUTER SCIENCE AND ENGINEERING DIPLOMA EXAM QUESTION PAPERS
  • III Semester Diploma in Computer Science and Engineering Examination, August 2011
  • OPERATING SYSTEMS
  • PART – A (1×15=15)
  • 1. Define operating system.
  • 2. What is process scheduling ?
  • 3. Define swapping.
  • 4. Define deadlock.
  • 5. Define semaphore.
  • 6. Define paging.
  • 7. Define segmentation.
  • 8. Define thrashing.
  • 9. Define demand paging.
  • 10. Explain single contiguous allocation.
  • 11. Explain best fit, worst fit methods of allocation.
  • 12. Define fragmentation.
  • 13. Differentiate between internal and external fragmentation.
  • 14. What are main functions of operating system ?
  • 15. Define real time system and time sharing system.
  • PART – B (5×12=60)
  • 16. Define various process scheduling algorithm.
  • OR
  • What is a deadlock ? Explain the various methods to prevent deadlock.
  • 17. What is paging ? Give mechanism to implement paging.
  • OR
  • What is segmentation ? Give mechanism to implement segmentation.
  • 18. What is disk scheduling ? Give various disk scheduling algorithms.
  • OR
  • What is page replacement ? Give various page replacement algorithms.
  • 19. Explain various mechanisms to avoid deadlock in a system.
  • OR
  • Give various reasons why deadlock occurs in a system.
  • 20. Write notes on following :
  • e) Polling
  • f) Spooling
  • g) Multi User System
  • h) Buffering.
  • OR
  • Compare Unix and Windows operating system with their advantages and disadvantages.
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