What is the primary role of the 'Zygote' process initialization step in Android? MCQ with Answer and Explanation

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What is the primary role of the 'Zygote' process initialization step in Android?

A. To encrypt user lock screen passwords securely.

B. To optimize disk defragmentation patterns.

C. To act as a warm prototype process that forks clean virtual machine instances for every newly opened application.

D. To download application updates from the internet.

Answer: Option C

Solution (By JKSSB Mock Tests)

The Zygote process optimizes resource utilization by pre-loading core libraries and forking copies of itself to quickly launch individual apps.

This question belongs to: Computer Operating Systems

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Question #1

What is the purpose of the Android 'SensorEvent' class?

A. To manage sensors

B. To hold data from sensor readings (values, accuracy, timestamp)

C. To register listeners

D. To calibrate sensors

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Correct Answer: Option B

Explanation:
SensorEvent is used in sensor callbacks to provide the sensor data values and metadata.

This question belongs to: Computer Operating Systems

Question #2

What type of memory allocation problem occurs when free memory blocks are broken down into tiny, disconnected gaps that are too small to serve new process requests?

A. Virtual Paging Fault

B. Deadlock Allocation

C. Internal Fragmentation

D. External Fragmentation

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Correct Answer: Option D

Explanation:
External fragmentation occurs when total free memory space exists to satisfy a allocation request, but it is split up non-contiguously into tiny pockets.

This question belongs to: Computer Operating Systems

Question #3

What is the name of the software layer in Android that provides standard interfaces to expose device hardware capabilities to the higher-level Java API framework?

A. Android Runtime (ART)

B. Linux Kernel

C. Hardware Abstraction Layer (HAL)

D. Native C/C++ Libraries

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Correct Answer: Option C

Explanation:
The Hardware Abstraction Layer (HAL) defines a standard interface for hardware vendors to implement, enabling higher-level Android framework APIs to interact with hardware.

This question belongs to: Computer Operating Systems

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