The types and number of assignments vary by course. Most courses do not have just a single quiz or exam to pass, but instead have many assignments throughout the course. If you finish the course in the verified track with at least the minimum passing score, you will earn a certificate.
The minimum passing score also varies by course. You can see the minimum score for a particular course on the progress page. This is the line between the gray and white sections on the progress graph.
To get a better sense of how our courses and platform work, please check out our Demo course.