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Question 235 - CTFL-2018 discussion

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Which of the following statements contradicts the general principles of testing?

A.
If new defects are to be found, we should run the same test set more often
Answers
A.
If new defects are to be found, we should run the same test set more often
B.
How testing is done, is based on the situation in a particular project.
Answers
B.
How testing is done, is based on the situation in a particular project.
C.
Testing is better if it starts at the beginning of a project
Answers
C.
Testing is better if it starts at the beginning of a project
D.
Most defects are found in a small subset of a system's modules
Answers
D.
Most defects are found in a small subset of a system's modules
Suggested answer: A

Explanation:

The general principles of testing state that testing can show the presence of defects, but not their absence. Running the same test set more often will not increase the likelihood of finding new defects, unless the system or its environment changes. Therefore, statement A contradicts the general principles of testing. Statement B is true, as testing is context-dependent and should be tailored to the specific situation of a project. Statement C is also true, as early testing can help prevent defects and reduce rework. Statement D is true, as it reflects the Pareto principle or the 80/20 rule, which states that most defects are found in a small subset of a system's modules.

asked 18/09/2024
Alan How
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