ISTQB Advanced Technical Test Analyst (ATTA) — Question 2

The comment frequency of the code fragment is 13%. To which ISO 9126 quality attribute does a good level of comment frequency especially contribute?

Answer options

• A. Portability
• B. Maintainability
• C. Usability
• D. Efficiency

Correct answer: B

Explanation

A good level of comment frequency primarily aids in Maintainability, as it helps developers understand the code more easily and make modifications or updates efficiently. While portability, usability, and efficiency are important quality attributes, they are not as directly impacted by the presence of comments in the code as maintainability is.