Chapter 4: Theoretical Concepts of Operating System — Online MCQ Test
COMPUTER APPLICATIONS · CLASS 11th · Tamil Nadu State Board
Practice Chapter 4: Theoretical Concepts of Operating System with a free chapter-wise online MCQ test.
This chapter covers: Exploring system software this chapter details operating system definitions objectives and functions. Students examine process management memory allocation file management security....
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Chapter 4: Theoretical Concepts of Operating System — Important Questions & Answers
Which of the following acts as an interface between the user and the hardware?
- A. Application Software
- B. Operating System
- C. Compiler
- D. Motherboard
Answer: B. Operating System
An Operating System provides an interface that allows users to interact with computer hardware efficiently.
An Operating System provides an interface that allows users to interact with computer hardware efficiently.
Which of the following is NOT a primary function of an Operating System?
- A. Process Management
- B. Memory Management
- C. Database Creation
- D. File Management
Answer: C. Database Creation
Database creation is a task performed by Database Management Systems (DBMS), not the core Operating System.
Database creation is a task performed by Database Management Systems (DBMS), not the core Operating System.
In which state does a process move when it is waiting for an I/O operation to complete?
- A. Ready
- B. Running
- C. Blocked
- D. Terminated
Answer: C. Blocked
A process enters the 'Blocked' or 'Waiting' state when it cannot proceed until an external event like I/O is finished.
A process enters the 'Blocked' or 'Waiting' state when it cannot proceed until an external event like I/O is finished.
If an OS manages multiple users simultaneously on a single mainframe, it is called:
- A. Single-user OS
- B. Multi-user OS
- C. Real-time OS
- D. Embedded OS
Answer: B. Multi-user OS
A multi-user OS allows several users to access the computer system resources at the same time.
A multi-user OS allows several users to access the computer system resources at the same time.
In a secure OS, which mechanism prevents unauthorized access to files?
- A. Memory fragmentation
- B. Access Control Lists (ACL)
- C. Context Switching
- D. Batching
Answer: B. Access Control Lists (ACL)
ACLs define the permissions for users, ensuring only authorized users can access specific files.
ACLs define the permissions for users, ensuring only authorized users can access specific files.