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Which one of the following is a functional requirement ?

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Which one of the following is a functional requirement ?

(a) Maintainability

(b) Portability

(c) Robustness

(d) None of the mentioned

I got this question during an interview.

My question is taken from Functional and Non-Functional Requirements in chapter Requirement Engineering of Software Engineering

1 Answer

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Best answer
Right choice is (d) None of the mentioned

The best explanation: All are non-functional requirements representing quality of the system. Functional requirements describe what the software has to do.

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