ISTQB Exam CTAL-TTA Topic 2 Question 37 Discussion

Actual exam question for ISTQB's CTAL-TTA exam

Question #: 37
Topic #: 2

Within an embedded software project, the maintainability of the software is considered to be critical. It has been decided to use static analysis on each delivered software component.

Which of the following metrics is NOT a maintainability metric typically used with static analysis?

ANumber of Lines of Code (LOG)

BNumber of Function Calls

CMean Time Between Failures

DComment Frequency

Show Suggested Answer

Suggested Answer: C

Maintainability metrics typically used with static analysis include measures that reflect the complexity and understandability of the code, such as Number of Lines of Code (LOC), Number of Function Calls, and Comment Frequency. These metrics help in assessing how easily the software can be understood, modified, and maintained. Mean Time Between Failures (MTBF), on the other hand, is a reliability metric. It measures the time elapsed between inherent failures of a system during operation. MTBF is used to predict the system's reliability and is not directly related to the maintainability of the code. Reliability metrics like MTBF would be used in the testing phase to measure the operational reliability of the system rather than during static analysis for maintainability assessment.

by Dolores at Jul 07, 2025, 10:45 PM

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Leandro

4 days ago

Hmm, C) Mean Time Between Failures doesn't seem like a typical static analysis metric. That's more of a reliability measure, not maintainability.

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