______________is a mechanism the prevents two or more processes from accessing a shared resource simultaneously.

A. Livelock

B. Preemption

C. Semaphore

D. either or

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  1. Which of the following is drop down list?
  2. The find command is different from most UNIX commands in that each of the argument expressions following…
  3. Find out the characteristics of System-oriented names:
  4. ______________ are popular way to improve application through parallelism.
  5. Choose the correct statement from the following.
  6. Which of the following is an essential file of a MS-DOS boot disk?
  7. In case of ____________________transparency a file can transparently move to another server.
  8. Taskbar is used for
  9. Recently deleted files are stored in
  10. When a child dies, it sends a _______________signal to its parent.
  11. Because the I/O devices are not synchronized with the CPU, some information must be exchanged between…
  12. Which of the following is suitable after you install new drivers?
  13. A _____________is a collection of processors that do not share memory, peripheral devices,or a clock.
  14. In_________________ model, when a process does a release access, the contents of all the modifications…
  15. The Basic Input Output System (BIOS) resides in
  16. _________, as a feature of good distributed file system, clients should be able to continue working…
  17. The Bankers algorithm is used
  18. ___________variable is not automatically created on all UNIX systems but is used by so many programs…
  19. Which of the following is/are external commands?
  20. The ______________ unpacks the call receipt messages from local RPC Runtime and makes a perfect local…
  21. Wiretapping to capture data in a network is an example of ________________
  22. A _______________in a distributed system is a string of bits or characters that is used to refer to…
  23. When copying more than one file at a time, you must specify an existing directory as the ___________
  24. Identify the server:This type of server generally remains in existence indefinitely. It is shared by…
  25. Transparent RPC mechanism refers to :
  26. Windows 2000 supports -------------- type of file system
  27. ______________is a mechanism the prevents two or more processes from accessing a shared resource simultaneously.
  28. In Windows, start button is used to
  29. ____________ file system allows sharing in multiple different locations grouped under one folder.
  30. The usual su command syntax is