Operating System MCQ Questions And Answers
Operating System MCQs : This section focuses on "Basics" of Operating System. These Operating System Multiple Choice Questions (MCQ) should be practiced to improve the OS skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.
1. What is true about OS?
A. An operating system (OS) is a collection of software.
B. The operating system is a vital component of the system software in a computer system.
C. An Operating System (OS) is an interface between a computer user and computer hardware.
D. All of the above
View Answer
Ans : D
Explanation: An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.
2. Which of the following is not a type of operating system?
A. OS/400
B. OS/200
C. VMS
D. z/OS
View Answer
Ans : B
Explanation: OS/200 is not a type of operating system.
3. Which of the following is not an important functions of an operating System?
A. Memory Management
B. File Management
C. Virus Protection
D. Processor Management
View Answer
Ans : C
Explanation: Virus Protection is not an important functions of an operating System.
4. In OS, Memory management refers to management of?
A. Primary Memory
B. Main Memory
C. Secondary Memory
D. Both A and B
View Answer
Ans : D
Explanation: Memory management refers to management of Primary Memory or Main Memory.
5. In multiprogramming environment, the OS decides which process gets the processor when and for how much time. This function is called _____________.
A. process scheduling
B. process rescheduling
C. traffic controller
D. Processor Management
View Answer
Ans : A
Explanation: In multiprogramming environment, the OS decides which process gets the processor when and for how much time. This function is called process scheduling
6. Keeps tracks of processor and status of process. The program responsible for this task is known as?
A. track manager
B. processor controller
C. traffic manager
D. traffic controller
View Answer
Ans : D
Explanation: Keeps tracks of processor and status of process. The program responsible for this task is known as traffic controller.
7. What does I/O controller do?
A. Keeps tracks of primary memory
B. Keeps tracks of all devices
C. Keeps tracks of processes
D. All of the above
View Answer
Ans : B
Explanation: Keeps tracks of all devices. Program responsible for this task is known as the I/O controller.
8. What does file system do?
A. Keeps track of information
B. Keeps track of location
C. Keeps track of information status
D. All of the above
View Answer
Ans : D
Explanation: Keeps track of information, location, uses, status etc. The collective facilities are often known as file system.
9. Which OS is mostly used?
A. IOS
B. Linux
C. Windows
D. AIX
View Answer
Ans : C
Explanation: Windows is the most popular operating system for desktop and laptop computers.
10. The first operating system created by Microsoft was?
A. Windows
B. MS-DOS
C. Seattle
D. AIX
View Answer
Ans : B
Explanation: The first operating system created by Microsoft was not called Windows, it was called MS-DOS and it was built in 1981.
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