I’ve worked on the platform for 12 years and just drew on my experience rather than the study guides.
There are questions I did not know at all. For instance I’ve never worked with the NS payroll which is USA centric. Also native FAM Maybe 10 questions all up where I was using ‘native’ general knowledge.
The remainder were tough but fair questions.
One prep I did do was go through Setup / Company / Enable Features and refresh myself on what’s available.