In Linux, which command is used to create a new directory? MCQ with Answer and Explanation

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In Linux, which command is used to create a new directory?

A. mkdir

B. create

C. newdir

D. rmdir

Answer: Option A

Solution (By JKSSB Mock Tests)

mkdir (make directory) creates a new directory in the file system.

This question belongs to: Computer Operating Systems

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Question #1

Which of the following is a popular bootloader for Linux?

A. GRUB

B. LILO

C. NTLDR

D. BOOTMGR

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Correct Answer: Option A

Explanation:
GRUB (GRand Unified Bootloader) is the most common bootloader for Linux distributions; LILO is older but less used.

This question belongs to: Computer Operating Systems

Question #2

What is the primary role of the Android 'AudioManager'?

A. To record audio

B. To manage Bluetooth audio

C. To play audio files

D. To control audio volume, rings, and sound modes

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Correct Answer: Option D

Explanation:
AudioManager manages system audio settings like volume levels, ringer mode, and audio focus.

This question belongs to: Computer Operating Systems

Question #3

Which utility in Android handles the composition of various display layers (windows, status bars, applications) onto a single framebuffer for rendering?

A. PackageManager

B. Zygote

C. SurfaceFlinger

D. ActivityManager

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Correct Answer: Option C

Explanation:
SurfaceFlinger is the system-wide graphics compositor in Android that accepts surface buffers from multiple sources and combines them for the display.

This question belongs to: Computer Operating Systems

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