when this question asked in interview.we can starat like this:
well in my last company as a tester my responsibilities were to attend walkthroughs,write test cases,while writing the test cases I always make sure that, I have covered all the requirements.I also maintained RTM so that I can map the requirements with test cases.while testing the application when I found defects I used to log them and kept track until they solved.
Other people asked questions on similar topics, check out the answers they received:
Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them