Pi will start by asking how you want to move through the course: fast track (blaze through, no quizzes, short answers) or thorough (quizzes, fuller explanations). Fast track is the default, so if you skip this question — or the whole interview — that’s what you get.
If you go fast track, Pi will ask one more optional, free-form question about your background — or you can just say “skip” and get started right away. If you go thorough, Pi will ask a few more specific questions about your experience and preferences, all still optional.
You can change any answer later just by asking Pi to update it.