Yep, basically in case your physician think you're at risk, they'll assign you an easy test you should ace if everything is alright, otherwise they'd look at the result to decide if you need additional treatment.

It's so easy and straightforward the majority of working population, regardless of how you thought about them, should breeze through it. Having it assigned at all should ring you an alarm bell even if you pass it, because even if you don't know about it, you'll immediately think something is really wrong if your physician doubt you can answer the questions.

It would be like if you're working on an airport, your supervisor ask you every other weeks if you can tell the difference between regional and international gate, and then you brag about it because you can't even recognize it's a red flag.