Operating Systems - Interview Questions and Answers


  1. List out some reasons for process termination.
    1. Normal completion
    2. Time limit exceeded
    3. Memory unavailable
    4. Bounds violation
    5. Protection error
    6. Arithmetic error
    7. Time overrun
    8. I/O failure
    9. Invalid instruction
    10. Privileged instruction
    11. Data misuse
    12. Operator or OS intervention
    13. Parent termination.
  2. What are the reasons for process suspension?
    1. swapping
    2. interactive user request
    3. timing
    4. parent process request
  3. What is process migration?
    It is the transfer of sufficient amount of the state of process from one machine to the target machine.
  4. What is mutant?
    In Windows NT a mutant provides kernel mode or user mode mutual exclusion with the notion of ownership.
  5. What is an idle thread?
    The special thread a dispatcher will execute when no ready thread is found.
  6. What is FtDisk?
    It is a fault tolerance disk driver for Windows NT.