iSAQB Certified Professional for Software Architecture – Foundation Level (CPSA-F) — Question 17

Select the two most appropriate methods for evaluating the reliability of a software system. (Choose two.)

Answer options

• A. Determining the number of 'lines of code'
• B. Measurement of 'Mean-Time-between-Failure'
• C. Execution of performance tests
• D. Determination of the cyclomatic complexity
• E. Conducting an ATAM evaluation

Correct answer: B, C

Explanation

The correct answers, B and C, focus on quantifiable metrics that directly assess system reliability and performance. 'Mean-Time-between-Failure' measures how often failures occur, while performance tests evaluate how the system behaves under load. The other options, while useful in different contexts, do not provide direct measurements of reliability.