I passed the exam yesterday. It is not difficult if you have worked a lot in the field but it is more complex than NCAP 5.5.

For the most part there are practical scenarios with some math.

It covers all aspects of the blueprint without forgetting all the best practices for ALL solutions.

Deepen all the topics of Networking, DR, Volumes and Files too.

Review prerequisites and procedure for Cluster exspansion and Block/ Rack Awareness

You need to have practiced, if not, you need memory, elasticity and logic, 

without forgetting a bit of luck.

Do your best!