Even if you don't get your green thumbprint, if you put all your eggs in one basket, you don't know if you are on track or not. You can only assume you were on the money or on the other hand you might not even realize it but could be completely wrong but someone else missed more questions.

Getting a green thumbprint doesn't mean shit. It just means that you might be on track, but you cannot confirm it because they don't say "you got this number of questions right on the quiz"