Which Android subsystem handles the core power management features to optimize battery consumption on mobile chipsets? MCQ with Answer and Explanation

Which Android subsystem handles the core power management features to optimize battery consumption on mobile chipsets?
A. Surface Flinger Engine
B. Wakelocks (via Linux kernel power drivers)
C. Dalvik Cache Manager
D. Android Package Installer
Answer: Option B
Solution (By JKSSB Mock Tests)
Android utilizes specialized power management routines (such as Wakelocks) integrated into its Linux kernel base to regulate system sleep cycles and battery drain.

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Practice More Operating Systems Questions

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Which of the following is NOT a valid process state in a typical operating system?
A. Paused
B. Running
C. New
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Correct Answer: Option A


Explanation:
Standard states are new, ready, running, blocked, terminated; 'paused' is not a standard OS process state.

This question belongs to: Computer Operating Systems
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Which Linux command is used to display the first few lines of a file?
A. head
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Correct Answer: Option A


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head shows the first 10 lines by default; tail shows the last lines.

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Which of the following is a valid Linux file permission value?
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Correct Answer: Option B


Explanation:
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