Which of the following best describes confirmation testing?

Confirmation testing, also known as re-testing, is specifically conducted after a defect has been fixed to ensure that the reported issue has been adequately addressed. This process involves executing the same test cases that initially identified the defect to confirm that the fix works as intended and that the problem no longer exists in the software.

The importance of confirmation testing lies in its role in maintaining software quality. By systematically verifying that specific defects have been resolved, testers help ensure that changes in the code do not introduce new defects or negatively impact existing functionalities.

The context surrounding this type of testing emphasizes its focus on validating the effectiveness of a defect resolution rather than assessing new features, compliance with specifications, or validating the overall system late in the development process.