Important Operating System Mcqs Questions and Answers Mcqs in 2021

Operating System Mcqs set 2

In this Article we are trying to provide most important Operating System mcqs, which mostly used for interviews and PPSC FPSC, Lecturer computer Science  Exams. For further we will upload article as well as soon.

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O/S Mcqs of All Test

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

a) system calls

 b) API

 c) library

d) assembly instructions

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

 a) power failure

 b) lack of paper in printer

 c) connection failure in the network

 d) all of the mentioned

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

a) log file

 b) another running process

c) new file

d) none of the mentioned

4. Which one of the following is not a real time operating system?

 a) VxWorks

 b) Windows CE

 c) RTLinux

 d) Palm OS

5. The main function of the command interpreter is

 a) to get and execute the next user-specified command

 b) to provide the interface between the API and application program

 c) to handle the files in operating system

d) none of the mentioned

6. The OS X has

 a) monolithic kernel

 b) hybrid kernel

 c) microkernel

d) monolithic kernel with modules

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

a) uniprogramming systems

 b) uniprocessing systems

 c) unitasking systems

d) none of the mentioned

8. In Unix, Which system call creates the new process?

 a) fork

 b) create

c) new

d) none of the mentioned

9. What is the ready state of a process?

 a) when process is scheduled to run after some execution

b) when process is unable to run until some task has been completed

 c) when process is using the CPU

 d) none of the mentioned

   10.  A set of processes is deadlock if

  1. each process is blocked and will remain so forever

b) each process is terminated

 c) all processes are trying to kill each other

d) none of the mentioned




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