What is the purpose of the Android 'AccessibilityManager'? MCQ with Answer and Explanation

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What is the purpose of the Android 'AccessibilityManager'?

A. To manage accessibility settings

B. To provide accessibility features and services for users with disabilities

C. To handle screen readers

D. To control gesture navigation

Answer: Option B

Solution (By JKSSB Mock Tests)

AccessibilityManager enables apps to assist users with disabilities, e.g., text-to-speech, magnification.

This question belongs to: Computer Operating Systems

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Question #1

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What structural condition refers to a situation where a child process continues running after its parent process has terminated?

A. Deadlocked Task

B. Orphan Process

C. Zombie Process

D. Blocked Thread

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Correct Answer: Option B

Explanation:
An orphan process is a running process whose parent has terminated; it is typically adopted by the 'init' or 'systemd' process (PID 1).

This question belongs to: Computer Operating Systems

Question #2

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In Windows, the command 'diskpart' is used for:

A. Disk formatting

B. Disk cleanup

C. Disk partition management

D. Disk defragmentation

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Correct Answer: Option C

Explanation:
diskpart is a command-line utility for managing disk partitions, volumes, and dynamic disks.

This question belongs to: Computer Operating Systems

Question #3

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What is the function of the Android 'TelephonyManager'?

A. To manage data connection

B. To make phone calls

C. To send SMS

D. To access device telephony and network information

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Correct Answer: Option D

Explanation:
TelephonyManager provides information about cellular network, SIM, device ID, and phone state.

This question belongs to: Computer Operating Systems

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