Thanks a mil Tim. I apologise for my late feedback, I've been looking at this since yesterday to verify if I'd be getting the kind of data that I need. I managed to get the data that I need.
Here is a question though, pertaining to those who may need to get quiz data from an external system. Is there an API somewhere which one can use to fetch data based on perhaps a courseid, or a combination of courseid and userid?
Thanks again for the response above. It helped a lot, and I must say I understand a bit more of the relationship between the questions data and the quizzes.