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

Question
What is the purpose of the Android 'AccessibilityManager'?
A. To control gesture navigation
B. To provide accessibility features and services for users with disabilities
C. To handle screen readers
D. To manage accessibility settings
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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Practice More Operating Systems Questions

Question #1
What structural concept enables an application to continue running even if one of its sub-tasks is blocked or performing a slow operation?
A. Single-tasking
B. Paging Out
C. Defragmentation
D. Multithreading
Discuss
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Correct Answer: Option D

Explanation:
Multithreading splits an application into distinct execution pathways, enabling a background thread to wait for slow inputs while a foreground thread handles user interaction.
This question belongs to: Computer Operating Systems
Question #2
What does the term 'multiprocessing' refer to?
A. The use of two or more CPUs within a single computer system
B. Running multiple programs on a single CPU
C. The ability to process multiple tasks simultaneously in a single program
D. Using multiple operating systems on one computer
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Correct Answer: Option A

Explanation:
Multiprocessing involves multiple CPUs (or cores) to execute multiple processes in parallel, improving performance.
This question belongs to: Computer Operating Systems
Question #3
In Android, which component is responsible for handling user input and events?
A. Sensor Manager
B. Window Manager
C. Activity Manager
D. View System
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Correct Answer: Option D

Explanation:
The View System includes UI widgets and handles input events like touches, key presses, and gestures.
This question belongs to: Computer Operating Systems
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