Chapter 4: Theoretical Concepts of Operating System — Online MCQ Test
COMPUTER SCIENCE · 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 core system software concepts this chapter details operating system functions process management and memory allocation. Students examine file systems security mechanisms....
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Chapter 4: Theoretical Concepts of Operating System — Important Questions & Answers
Which of the following is considered the primary interface between the hardware and the user?
- A. Application Software
- B. Operating System
- C. Compiler
- D. Database Management System
Answer: B. Operating System
An Operating System acts as an intermediary or interface between the computer hardware and the user.
An Operating System acts as an intermediary or interface between the computer hardware and the user.
What is the full form of GUI in the context of operating systems?
- A. Graphical User Interaction
- B. General User Interface
- C. Graphical User Interface
- D. Global User Interchange
Answer: C. Graphical User Interface
GUI stands for Graphical User Interface, which allows users to interact through visual elements like icons and menus.
GUI stands for Graphical User Interface, which allows users to interact through visual elements like icons and menus.
Which function of the Operating System involves keeping track of every memory location, whether it is allocated or free?
- A. Process Management
- B. Memory Management
- C. File Management
- D. Security Management
Answer: B. Memory Management
Memory Management is responsible for tracking the status of primary memory and allocating/deallocating memory to processes.
Memory Management is responsible for tracking the status of primary memory and allocating/deallocating memory to processes.
Which of the following best describes the difference between a CLI and a GUI?
- A. CLI uses icons while GUI uses commands
- B. CLI is text-based and requires typing commands; GUI is visual and uses icons
- C. GUI is faster than CLI in all operations
- D. There is no functional difference between CLI and GUI
Answer: B. CLI is text-based and requires typing commands; GUI is visual and uses icons
CLI relies on text commands typed into a terminal, whereas GUI relies on visual interaction with graphical elements.
CLI relies on text commands typed into a terminal, whereas GUI relies on visual interaction with graphical elements.
In the context of process management, what happens when a high-priority process arrives in a system using preemptive scheduling?
- A. The CPU ignores it until the current process finishes
- B. The current process is suspended and the CPU is allocated to the high-priority process
- C. The high-priority process is queued at the end of the ready list
- D. The system reboots automatically
Answer: B. The current process is suspended and the CPU is allocated to the high-priority process
In preemptive scheduling, the OS can forcibly stop a currently running process to handle a more urgent or higher-priority task.
In preemptive scheduling, the OS can forcibly stop a currently running process to handle a more urgent or higher-priority task.