Software Quality Assurance Practice Exam

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What is an essential element in regression testing?

Testing only new code modifications
Comprehensive regression to ensure previously fixed errors do not recur
Ignoring non-critical areas of the application
Testing the integration of new features only

The correct answer is: Comprehensive regression to ensure previously fixed errors do not recur

Regression testing is crucial to ensuring the integrity of software after changes have been made, such as bug fixes or new feature integrations. The primary goal of this form of testing is to verify that the existing functionalities still function as intended and that no new anomalies have been introduced as a result of modifications. Focusing on comprehensive regression helps identify any unintended consequences of code changes. If previously fixed errors were to reappear after new code is integrated or modifications are made, it could significantly undermine user trust and software reliability. Therefore, the practice of conducting thorough regression tests to validate that previously resolved issues remain fixed is an essential aspect of maintaining software quality. In contrast, testing only new code modifications or focusing on specific features can lead to oversight, where existing functionalities may unintentionally break without being detected. Ignoring non-critical areas or only testing new features can create a patchwork of testing that ultimately jeopardizes the overall quality assurance process. The essence of robust regression testing lies in its comprehensive approach, ensuring that all aspects of the software, including previously resolved issues, are safeguarded against regression defects.