The document provides a comprehensive overview of frequently asked QA interview questions and their answers, covering topics such as testing techniques, the differences between quality assurance, control, and testing, verification vs. validation, and strategies for approaching project doubts. It also emphasizes the importance of both functional and non-functional testing, as well as the role of QA in resolving production issues and preventing bugs from recurring. Additionally, it outlines various testing methodologies including load and stress testing, and elaborates on writing test cases without documentation.