What is the primary role of a decompiler program in software engineering? MCQ with Answer and Explanation

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What is the primary role of a decompiler program in software engineering?

A. To merge separate static library modules into a single binary file.

B. To scrub malicious registry entries before the operating system boots up.

C. To translate assembly text into machine binary code files.

D. To reverse engineer an executable binary file back into high-level source code.

Answer: Option D

Solution (By JKSSB Mock Tests)

Decompilers attempt to translate low-level machine or bytecode files back into a readable high-level programming language to aid reverse engineering.

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Correct Answer: Option A

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The shell is a user interface that interprets and executes commands.

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Resource allocation is a core function of the OS to ensure fair usage.

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Correct Answer: Option C

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CCleaner is a standalone utility for cleaning junk files and optimizing system performance.

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