Hello Friends,this particular section is well focused on the Frequently asked Operating System Multiple Choice Questions with Answers in various competitive exams.This set of questions are very basic and easily understandable by students.we have kept the questions hardness level to very basic.

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1. What is interprocess communication?

  • communication within the process
  • communication between two process
  • communication between two threads of same process
  • none of the mentioned

2. A set of processes is deadlock if

  • each process is blocked and will remain so forever
  • each process is terminated
  • all processes are trying to kill each other
  • none of the mentioned

3. A process stack does not contain

  • function parameters
  • local variables
  • return addresses
  • PID of child process

4. Which system call returns the process identifier of a terminated child?

  • wait
  • exit
  • fork
  • get

5. The address of the next instruction to be executed by the current process is provided by the

  • CPU registers
  • program counter
  • process stack
  • pipe

6. When the process issues an I/O request :

  • It is placed in an I/O queue
  • It is placed in a waiting queue
  • It is placed in the ready queue
  • It is placed in the Job queue

7. What is a long-term scheduler ?

  • It selects which process has to be brought into the ready queue
  • It selects which process has to be executed next and allocates CPU
  • It selects which process to remove from memory by swapping
  • None of these

8. What is a medium-term scheduler ?

  • It selects which process has to be brought into the ready queue
  • It selects which process has to be executed next and allocates CPU
  • It selects which process to remove from memory by swapping
  • None of these

9. What is a short-term scheduler ?

  • It selects which process has to be brought into the ready queue
  • It selects which process has to be executed next and allocates CPU
  • It selects which process to remove from memory by swapping
  • None of these

10. The primary distinction between the short term scheduler and the long term scheduler is :

  • The length of their queues
  • The type of processes they schedule
  • The frequency of their execution
  • None of these
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