Which Linux command is used to view the last lines of a file? MCQ with Answer and Explanation

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Which Linux command is used to view the last lines of a file?

A. cat

B. tail

C. head

D. less

Answer: Option B

Solution (By JKSSB Mock Tests)

tail displays the last few lines of a file; useful for checking recent log entries.

This question belongs to: Computer Operating Systems

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Which execution environment layer in Android handles core operations like memory management, thread orchestration, and garbage collection for modern apps?

A. Android Runtime (ART)

B. Linux Kernel Core

C. Hardware Abstraction Layer

D. Dalvik Cache Engine

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Correct Answer: Option A

Explanation:
ART (Android Runtime) serves as the managed execution environment for modern Android applications, handling execution and garbage collection.

This question belongs to: Computer Operating Systems