I'm really upset, because I feel like I wasted my lingots for the quiz. I just got to the first checkpoint in Dutch and I had to translate things that I didn't learn. Is that how it's supposed to be? :///
Yup, that is how it is supposed to be. It measures your progress. You'll take it again in a few weeks or a few months and your score will be higher. And then when you finally get 5/5 it is super satisfying.
That said, I see topics like this ALL THE TIME here, so I think it's possible Duolingo could describe the use of the quiz a little better in the lingot store to reduce this confusion a little.