Software testing is the process of evaluating and verifying that a software application or system meets its intended requirements and functions correctly. Testing can be manual or automated, and spans multiple levels—from unit testing to system and acceptance testing. It’s a critical part of the Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC). A Software Testing course teaches you how to: - Identify and fix bugs before deployment - Validate software functionality, performance, and security - Write and execute test cases manually and through automation - Use tools like Selenium, JUnit, Postman, and TestNG - Understand SDLC (Software Development Life Cycle) and STLC (Software Testing Life Cycle)