What is the main function of a boot loader? MCQ with Answer and Explanation

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What is the main function of a boot loader?

A. Loads the kernel into memory

B. Performs POST

C. Manages user login

D. Runs applications

Answer: Option A

Solution (By JKSSB Mock Tests)

The boot loader loads the operating system kernel from disk into RAM.

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Question #1

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Which component of an operating system serves as the textual terminal interface, accepting typed keywords from a user and passing them to the kernel?

A. Command Line Shell

B. GUI Desktop Manager

C. Device Driver

D. Linker Program

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Correct Answer: Option A

Explanation:
The shell is the user interface program that wraps around the kernel, reading user text input commands and executing them.

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Question #2

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A utility program that completely overwrites a disk storage volume with new file system tracks and sectors, scrubbing old data indices completely, is a:

A. Disk Optimizer

B. File Compressor

C. Disk Formatter

D. System Uninstaller

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Correct Answer: Option C

Explanation:
A disk formatter prepares a storage unit to accept data files by wiping existing configurations and writing a clean structural file system.

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