Which Android subsystem handles layout asset rendering and combines diverse display surfaces onto the final hardware screen output? MCQ with Answer and Explanation

Which Android subsystem handles layout asset rendering and combines diverse display surfaces onto the final hardware screen output?
A. Zygote Prototype
B. Package Manager
C. Activity Coordinator
D. SurfaceFlinger Engine
Answer: Option D
Solution (By JKSSB Mock Tests)
SurfaceFlinger functions as the system graphics compositor, merging various application display buffers into a single image to be rendered.

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Which Linux terminal command can be used to monitor real-time file updates, frequently used to watch system log additions dynamically?
A. cat
B. less
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Correct Answer: Option C


Explanation:
The 'tail' command with the '-f' (follow) option keeps the text stream open, printing new lines to the terminal screen as they are written to the log file.

This question belongs to: Computer Operating Systems
Question #2
Which Windows utility is used to view and terminate running processes and applications?
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Correct Answer: Option A


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Task Manager provides a list of running processes, performance data, and allows users to end tasks or processes.

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Which Linux command is used to view the system's boot messages?
A. messages
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Correct Answer: Option B


Explanation:
dmesg prints the kernel ring buffer messages, including boot-time logs; journalctl for systemd logs.

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