Which one of the following is a functional requirement ?
Correct answer: D. None of the mentioned
- A. Maintainability
- B. Portability
- C. Robustness
- D. None of the mentioned
Explanation
Maintainability, portability, and robustness describe quality attributes or constraints on the system, so they are non-functional requirements. Since no functional requirement is listed, none of the mentioned options is correct.
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