Important Questions related to QA What is the difference between Bug and Defect? Answer: A bug is the result of a coding error A defect is a deviation from the requirements That is: A defect does not necessarily mean there is a bug in the code , it could be a function that was not implemented but defined in the requirements of the software. https://en.wikipedia.org/wiki/Software_testing. What is Validation and Verification in terms of Software Development? Flow-chart of the Facebook login page. Plus, test cases to cover the scenarios. List of CASE tools. Boundary-value analysis. Python: 1. is Python OOP ? 2. if not, how Python implement the behaviour of OOP? Answer: using 'self'. 3. use of Self in python. 4. Priority and severity : Example of bugs with high/low priority as well as low/high severity. Example : a. Typo in About us page. b. Financial application: interest should be 5%. But the issue is now it's 10% in code. The impact month i...