Exploratory Testing is an unscripted approach to software testing where testers rely on their intuition, experience, and creativity to identify defects without predefined test cases. It emphasizes real-time learning, test design, and simultaneous test execution, allowing testers to continuously adapt their testing based on the results.

Stress testing involves deliberately overloading the system beyond its specified limits. The objective is to identify system weak points, ensure it fails gracefully, and understand how it behaves under extreme conditions.

Version Control systems allow multiple developers to work on the same project concurrently. When two developers make changes to the same piece of code, the version control system flags it as a merge conflict. The developers, possibly with the help of a lead or reviewer, will then resolve the conflict, ensuring that the final merged code retains the intended functionality from both changes.

The Test Lead is usually responsible for managing and leading the test team, which includes making key decisions related to test issues. While a Test Manager might have overarching responsibility and a Business Analyst might provide business perspective, it is the Test Lead who usually determines the severity and priority of a bug.

Automated testing is particularly suitable for regression tests, which need to be executed frequently to ensure that previously working functionality remains intact after any code changes or updates.

A "Scenario" in usability testing refers to a specific set of tasks that participants are asked to perform. It's a narrative that describes the user's actions and intentions without suggesting how they might be accomplished. This helps to evaluate the product's ease of use and intuitiveness in a real-world context.

In a Continuous Deployment setup, rapid feedback is essential to ensure the frequent releases don't break functionality. An Automation Tester plays a critical role here, as they set up automated test cases that can quickly validate the software's functionality after every release, ensuring rapid feedback without manual intervention.

Incremental integration testing involves integrating one component at a time, testing it, and then moving to the next, ensuring that defects are identified and corrected at each step. This approach is efficient in pinpointing issues.

Static testing involves examining the code, requirements, or design without executing it, to identify issues early on. Dynamic testing, on the other hand, validates the software by executing it in real-time scenarios. This fundamental difference in execution separates the two.

Beta testing is a type of user acceptance testing where the software is released to a limited number of end-users to obtain feedback and report bugs. This feedback is essential to improve software quality before its broader or official release.