Quizzes can be added to lessons & topics, or as a final quiz to the course itself. Any combination of these will work. You can create new quizzes directly from the course builder, or pull in existing quizzes you’ve already created.
Course quizzes are located at the bottom of the course builder, under the “FINAL QUIZZES” heading. Lesson & topic quizzes can be found within the lesson/topic that they belong to.