While Load Time, Response Time, and Throughput are common metrics used in performance testing to measure various aspects of the system's performance, "Number of Defects" is not a performance metric. It is typically associated with functional testing and bug tracking.

Error Guessing is a testing technique where testers rely on their past experiences and knowledge of system failures to identify potential defects. Instead of using a systematic approach, testers use their intuition to "guess" where defects might be present and construct tests based on these hunches, drawing from previous issues they have encountered.

Load testing focuses on understanding the behavior of the system under a specific load or request volume. Metrics like latency (response time) and throughput (number of requests processed per unit time) are crucial.

Usability Testing focuses on a user's experience with the application. It ensures that the product is easy to use and provides a good user experience. Issues like button placements, text alignment, and other design-related aspects that might hamper the user's experience or make the application difficult to navigate are typically identified in Usability Testing.

During Test Planning, the Test Plan is the key document that captures all aspects of testing, including the identification and assignment of roles and responsibilities, resources, schedules, and other relevant details to guide the testing efforts throughout the cycle.

The "Multiple Ways" concept emphasizes providing different methods, such as site search, sitemaps, or a table of contents, to locate a specific web page within a set. This ensures users can easily find information and enhances user experience.

Configuration Status Accounting is a crucial element of Configuration Management, which keeps track of the status of components and ensures a record of all changes. This helps in maintaining traceability, ensuring that all components are consistent with their specified requirements.

The effectiveness of a security audit largely depends on the skillset and expertise of the auditor. A proficient auditor can accurately identify vulnerabilities, understand the nuances of the system, and provide valuable recommendations. Tools and speed are essential, but human expertise ensures a comprehensive and effective audit.

Alpha Testing is a type of acceptance testing conducted in a controlled environment. Here, internal employees of the developing organization test the software. It ensures that major bugs are identified and rectified before the software reaches the Beta Testing phase or the end users.

An Automation Tester utilizes automated test scripts to rapidly validate software functionality. This allows for immediate feedback to developers, ensuring quick turnarounds. Manual testing, though valuable, is often slower compared to automated tests which can be executed repeatedly without manual intervention.