Which of these are considered best practice in software testing and validation?

Compatibility testing for web application usually includes:

Diff between test cases and test suites

Diff between test plan and test cases

Which of these activities is NOT one of the activities recommended to be performed by an independent SQA group?

Tracing defect origin, i.e., the stage in the development life cycle when the defect was created (Requirements, Design, Coding) can be helpful in:

Defect's (bug's) Severity and Priority differ in that:

What is a walkthrough?

Alpha tests differ from Beta tests in that:

Black-box testing attempts to find errors in which of the following categories:

UX Stands for _____________