Most audio quizzes going around ask what an acronym means or what year a compressor came out. That measures reading, not mixing. In a real session nobody asks you what ratio is: you find a vocal jumping in level and have to decide what to do in the next thirty seconds.
So the eight questions are written backwards: symptom first, decision after. And every answer carries its explanation whether you got it right or not, because the value isn't in the score but in understanding why one option beat the other three.
The overall score says little. What actually orients you is the breakdown by area: it's very common to ace the EQ questions and miss the ones about translating between systems, or the other way round. That uneven profile is normal, and it's exactly the information you need to decide where the next few weeks should go instead of revising what you already have.
Where you fall short changes the next step: for frequencies, EQ Surgeon; for space, Stereo Space; and if you hesitate in front of a whole problem, mix diagnosis.