I have an ACE certification, and I thought the test was a complete joke.
Questions like:
'What is a concentric action?'
'What is a lacto-ovo vegetarian?'
'You see someone bench pressing in the gym and they are bouncing the bar off their chest, what do you do?
'One of your female clients mentions to you that she thinks another personal trainer at the club is good looking and is interested in dating him, what do you do?'
Knowing what a lacto-ovo vegetarian or concentric actions are has nothing at all to do w/ personal training. And the other questions for their ethics part that are opinionated and have no right or wrong answer but are scored quantitatively sure are ethical

The test was designed basically so that someone 5 foot tall and 400lbs who has never set foot inside a gym could study a bunch of terms and pass the test and be a CPT, despite not having a clue what a military press is, or what happens when you move your hands close together when doing a flat bench press.