Operating System Services MCQ Questions
Operating System Services MCQs : This section focuses on "Services" of Operating System. These OS Multiple Choice Questions (MCQ) should be practiced to improve the Operating System skills required for various interviews (campus interview, walk-in interview, company interview), placements, entrance exams and other competitive examinations.
1. What are the services operating System provides to both the users and to the programs?
A. File System manipulation
B. Error Detection
C. Program execution
D. Resource Allocation
View Answer
Ans : C
Explanation: An Operating System provides services to both the users and to the programs. It provides programs an environment to execute and It provides users the services to execute the programs in a convenient manner.
2. Which of the following few common services provided by an operating system?
A. Protection
B. Program execution
C. I/O operations
D. All of the above
View Answer
Ans : D
Explanation: All of the above are services provided by an operating system.
3. Which of the following are examples of storage media?
A. magnetic disk
B. optical disk
C. Both A and B
D. None of the above
View Answer
Ans : C
Explanation: Examples of storage media include magnetic tape, magnetic disk and optical disk drives like CD, DVD.
4. Which of the following is true about Program execution?
A. Restrict to load a program into memory.
B. Provides a mechanism for process synchronization.
C. Do not provides a mechanism for process communication.
D. Do not provides a mechanism for deadlock handling.
View Answer
Ans : B
Explanation: Option B is correct.
5. Which of the following is false about I/O Operation?
A. Operating system does not provides the access to the I/O device
B. I/O operation means read or write operation
C. An I/O subsystem comprises of I/O devices
D. None of the above
View Answer
Ans : A
Explanation: Operating system provides the access to the required I/O device when required.
6. Which of the following is false about File system manipulation?
A. Computers can store files on the disk (Primary storage), for long-term storage purpose
B. Program needs to read a file or write a file.
C. Operating System provides an interface to the user to create/delete files.
D. Operating System provides an interface to create the backup of file system.
View Answer
Ans : A
Explanation: Computers can store files on the disk (secondary storage), for long-term storage purpose. Examples of storage media include magnetic tape, magnetic disk and optical disk drives like CD, DVD.
7. Which of the following is true about Communication?
A. The OS handles routing and connection strategies, and the problems of contention and security.
B. Two processes often require data to be transferred between them
C. Communication may be implemented by two methods, either by Shared Memory or by Message Passing.
D. All of the above
View Answer
Ans : D
Explanation: All statement are correct.
8. Which of the following is true about Communication?
A. Errors can occur anytime and anywhere.
B. An error may occur in CPU, in I/O devices or in the memory hardware.
C. OS constantly checks for possible errors.
D. All of the above
View Answer
Ans : D
Explanation: All statement are correct.
9. The OS ensures that all access to system resources is controlled.The major activities of an operating system with respect to?
A. Error handling
B. Resource Management
C. Protection
D. Communication
View Answer
Ans : C
Explanation: the major activities of an operating system with respect to protection : The OS ensures that all access to system resources is controlled.
10. Two processes often require data to be transferred between them. The major activities of an operating system with respect to?
A. Error handling
B. Resource Management
C. Protection
D. Communication
View Answer
Ans : D
Explanation: The major activities of an operating system with respect to communication : Two processes often require data to be transferred between them
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