What is the purpose of a resource allocator in an OS? MCQ with Answer and Explanation

Question
What is the purpose of a resource allocator in an OS?
A. Allocates CPU, memory, and I/O to processes
B. Connects to internet
C. Manages files
D. Compiles programs
Answer: Option A
Solution (By JKSSB Mock Tests)
Resource allocation is a core function of the OS to ensure fair usage.
This question belongs to: Computer Computer Software
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Question #1
Which of the following describes an operating system capability that allows multiple programs or tasks to appear to run concurrently by rapidly switching the CPU's attention between them?
A. Multiprocessing
B. Multitasking
C. Multithreading
D. Real-time Streaming
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Correct Answer: Option B

Explanation:
Multitasking allows an operating system to execute multiple applications concurrently by slicing CPU cycles among them.
This question belongs to: Computer Computer Software
Question #2
Which of the following is a type of system software that provides a command-line interface?
A. Notepad
B. Explorer
C. Command prompt (cmd)
D. Paint
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Correct Answer: Option C

Explanation:
Command Prompt is a CLI utility for executing text-based commands.
This question belongs to: Computer Computer Software
Question #3
What is the role of the window manager in a GUI?
A. Manages the appearance and placement of windows
B. Manages files
C. Manages hardware
D. Compiles programs
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Correct Answer: Option A

Explanation:
The window manager controls window borders, title bars, and positioning.
This question belongs to: Computer Computer Software
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