We should know the logic, code and the structure of the program or function. Internal knowledge of the application how the system works what's the logic behind it and structure how it should react to particular action.
What makes a good test engineer?
What kinds of testing should be considered?
What is a �walkthrough�?
What is Validation?
Why does software have bugs?
What is �Software Testing�?
What is �Software Quality Assurance�?
What are the different approaches to testing on agile development projects?
What is Application Binary Interface (ABI)?
What is Agile Testing?