In Android, which service allows apps to send and receive messages between components? MCQ with Answer and Explanation

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In Android, which service allows apps to send and receive messages between components?

A. Intent

B. Broadcast Receiver

C. Content Provider

D. Service

Answer: Option A

Solution (By JKSSB Mock Tests)

Intents are messaging objects used to request actions from other app components, such as starting an activity or broadcasting.

This question belongs to: Computer Operating Systems

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Question #1

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Which file in older BIOS-based Windows operating systems (like Windows XP) held the boot configuration options and startup menus?

A. config.sys

B. BCD (Boot Configuration Data)

C. boot.ini

D. grub.cfg

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Correct Answer: Option C

Explanation:
Legacy Windows systems (up to Windows XP) relied on the text-based 'boot.ini' file located in the root system folder to read boot configuration parameters.

This question belongs to: Computer Operating Systems

Question #2

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Which Windows keyboard shortcut opens the Advanced Windows Power User Task Menu (providing direct access to Device Manager, Disk Management, and Terminal)?

A. Windows Key + L

B. Ctrl + Alt + Delete

C. Alt + Spacebar

D. Windows Key + X

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Correct Answer: Option D

Explanation:
Pressing Windows Key + X brings up the Quick Link / Power User menu, giving swift administrative shortcuts to advanced Windows tools.

This question belongs to: Computer Operating Systems