My feeling is for a lot's of questions, several answers are right but the exam ask you to choose the best answer. So this I found hard.
Also I had questions whether you had to configure a feature (I forgot which one) though a landing page or a rule form (I failed to see why it was important).
A question about a the Switch shape in strategy which I think is not covered in training. So my guess is you need to really look at all shapes available in strategies along with the group they belong to (arbitration etc).
A number of questions about branch ruleset and how team of developer are working.
Some of them really puzzling, I will have to read again the training, I guess I missed some parts.
Fortunately still a good number of pure techi question (right/wrong), like pure rule resolution.
I found question about reports hard as you need to visualize tables involved based on property names. Hence you need to know such properties is part of work table or assignment or other etc.
A number of question related to workgroup with worbasket and unit (a topic I have difficulties with).
I found question about performance easy as for this particular topic the training is well aligned with questions.