Holistically, yes. But they are free to fail any given assignment any number of times- in fact, many would sign up to take quizzes before studying, as a preview of what the assessment would look like and a way to rapidly jump through sections they might have studied elsewhere.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.