I would say you either need to work with VCF everyday from a admin and architect level or at the very least have completed two courses such as VMware Cloud Foundation: Deploy, Configure, Manage [V5.2] – On Demand and a design course such as VMware vSphere: Design [V8] – On Demand, that go through the fundamentals .
Alot of questions are long, so you may need to read them a few times, I only had 15minutes left before the exam finished and didn’t have time to review. It covers alot of design questions in real life scenarios .
A overview would be these areas to study.
non-functional vs Functional requirements
Business vs Technical requirements
identify a constraint, risk, assumption and requirement
logical, physical designs, conceptual
VCF, Aria products, HCX, migrations and scalability
Some study notes i found online that were useful for me AND Good luck on your exam (Yes I did pass first time, go me)
Jeffrey Kusters article ‘Breaking down the conceptual design, RCARs and AMPRS …. VCDX style’ really helped with the exam.
Thank you Jeffrey Kusters for article. See below for url