A programmer writes source code in Python. An interpreter is used to run the program. Which statement correctly describes how an interpreter processes the source code?

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Question

A programmer writes source code in Python. An interpreter is used to run the program. Which statement correctly describes how an interpreter processes the source code?

Accepted Answer

It translates and executes the source code one line at a time — Award 1 mark for identifying that an interpreter translates and executes one line (or statement) at a time. This means execution stops immediately when an error is encountered on a specific line. A is incorrect — translating the entire source code before execution describes the behaviour of a compiler, not an interpreter. C confuses the function of an assembler, which translates assembly language into machine code, with an interpreter. D is incorrect — interpreters do not save a compiled version; each run requires re-translation, which is a key disadvantage compared to compilers.

Answer

It stores a compiled version of the program for repeated use

Answer

It converts the source code into assembly language for the processor to execute

Answer

It translates and executes the source code one line at a time

Answer

It translates the entire source code into object code before execution begins

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