Software Quality Assurance Practice Exam

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Prepare for the Software Quality Assurance Exam. Tackle multiple-choice questions with detailed explanations. Enhance your understanding and boost your confidence for your exam!

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Which of the following best describes regression testing?

Testing new functionality only
Verifying that previously developed features still work
Conducting tests without planning
Testing that all features are complete

The correct answer is: Verifying that previously developed features still work

Regression testing is best described as the process of verifying that previously developed features still work after changes such as enhancements, bug fixes, or updates have been made to the software. The primary goal of this type of testing is to ensure that new code changes have not adversely affected existing functionalities. This is crucial in software development, where modifications can sometimes unintentionally introduce new bugs into areas of the application that were previously functioning correctly. In the context of the other options, testing new functionality only focuses on the addition of new features without considering the existing ones, which does not align with the purpose of regression testing. Conducting tests without planning does not reflect a structured approach, which is essential in regression testing to ensure thorough coverage and reliability. Lastly, testing that all features are complete implies a focus on feature completeness rather than on verifying the stability and functionality of the software after changes, which is the heart of regression testing. Thus, the description of verifying that previously developed features continue to function correctly encapsulates the essence of regression testing accurately.