severity-priority difference. verification-validation difference smoke-sanity difference authorization-authentication difference bug life cycle in JIRA situational question: u have 3 days to test, 2 testers, and 800 test cases, what will u do. and in case you did the important testing and later after deployed if client raises a question on some defect he faces, how will you handle the client. write test cases for cab service ola/uber, where customer uses desktop app, and driver uses mobile app. trip status can be new, assigned, started, ongoing, completed, cancelled. note: once trip started or completed cannot be cancelled.