Hello Friends,this particular section is well focused on the Frequently asked Operating Systems MCQs 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.

1. What is operating system?

  • collection of programs that manages hardware resources
  • system service provider to the application programs
  • link to interface the hardware and application programs
  • all of the mentioned

2. To access the services of operating system, the interface is provided by the

  • system calls
  • API
  • library
  • assembly instructions

3. Which one of the following error will be handle by the operating system?

  • power failure
  • lack of paper in printer
  • connection failure in the network
  • all of the mentioned

4. The main function of the command interpreter is

  • to get and execute the next user-specified command
  • to provide the interface between the API and application program
  • to handle the files in operating system
  • none of the mentioned

5. By operating system, the resource management can be done via

  • time division multiplexing
  • space division multiplexing
  • both (a) and (b)
  • none of the mentioned

6. If a process fails, most operating system write the error information to a

  • log file
  • another running process
  • new file
  • none of the mentioned

7. The systems which allows only one process execution at a time, are called

  • uniprogramming systems
  • uniprocessing systems
  • unitasking systems
  • none of the mentioned

8. In operating system, each process has its own

  • address space and global variables
  • open files
  • pending alarms, signals and signal handlers
  • all of the mentioned

9. A process can be terminated due to

  • normal exit
  • fatal error
  • killed by another process
  • all of the mentioned

10. What is the ready state of a process?

  • when process is scheduled to run after some execution
  • when process is unable to run until some task has been completed
  • when process is using the CPU
  • none of the mentioned

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