Software Testing Types - Basic

Sanity testing is performed to determine if a new software version is stable enough to be accepted for major testing efforts. It's a preliminary test to ensure basic functionality works before committing to more comprehensive testing. Basic Testing isn't a standard term, Acceptance testing comes later, and Usability testing focuses on user experience.

Compatibility testing evaluates how well software performs across different hardware, software, operating systems, and network environments, including various combinations. This matches the description exactly. Comparison testing compares different versions, Beta testing is done by users, and Environment testing isn't a standard term.

Beta testing is typically done by end-users or external testers and is the final testing phase before commercial release. Alpha testing is internal, User Acceptance Testing is done by stakeholders before beta, and System testing is more comprehensive. Note: There's a typo in option D ('tetsing' instead of 'testing').

End-to-end testing validates the entire application flow in a real-world environment, including interactions with databases, networks, hardware, and other systems. Beta testing is user testing before release. User acceptance testing (UAT) is done by end users to verify requirements. System testing tests the integrated system but not necessarily with real-world external dependencies.

Stress testing pushes a system beyond its specified limits to see when and how it fails. Load testing tests system performance under expected load. Performance testing measures system responsiveness. Usability testing evaluates user experience and interface usability.