Computer Science Mock Test NET Exam (Operating Systems ) - Part 02

This Quiz is posted with the sole aim of guiding the aspirants of UGC-NET /CSIR -NET Exam to the path of success. To sharpen the edges of your own intelligence and practice, in a structured and concrete manner to ensure you definite Success in your endeavor and will Pave your way for a successful career in Teaching (or) Research Profession . All the very best...... Knock the door of success......
  1.  Belady's Anomaly is a behavior of which page replacement algorithm?
    1.  LRU
    2.  LPU
    3.  FIFO
    4.  Optimal

  2. Which one of the following is not an operating system call for process management?
    1.  PBC
    2.  FORK
    3.  DELETE
    4.  PCB

  3. Select the Unix command used to verify integrity of the file system. 
    1.  fsck
    2.  dump
    3.  mount
    4.  link

  4. System resources of computer system can be utilized better in ________.
    1.  dual program environment
    2.  single program environment
    3.  core environment
    4.  multi program environment

  5. Multiprogramming of computer system increases ______.
    1.  storage
    2.  memory  
    3.  cost
    4.  CPU utilization

  6. Environment in which programs of computer system are executed is ______.
    1.  Nodes
    2.  Operating systems
    3.  Both (a) & (b)
    4. None of the above

  7. Fence register is used for _____.
    1.  memory protection
    2.  file protection
    3.  CPU protection
    4.  None of the above

  8. Service not supported by the operating system______.
    1.  I/O protection
    2.  accounting
    3.  protection
    4.  Compilation

  9. Character special files_____.
    1.  modem
    2.  printer
    3.  All of the above
    4.  None of the above

  10. Operating system provides System access function to protect ________.

    1.  memory
    2.  I/O modules
    3.  Both (a) & (b)
    4.  Data and Resources




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