ISQI Certified Tester Foundation Level — Question 28

Which of the following best describes the Black-box technique?

Answer options

• A. It uses decision coverage for completeness.
• B. It ensures all possible branches in the code are tested.
• C. It is based on the internal structure of the system.
• D. It can be done without reference to the internal structure of the component or system.

Correct answer: D

Explanation

The correct answer is D because the Black-box technique focuses on testing the functionality of the system without needing to know its internal workings. Options A and B describe techniques that involve understanding the internal structure, while option C explicitly states that it is based on the internal structure, which contradicts the essence of the Black-box method.