Hey @DavidPike
I'm actually studying for this myself, and I tend to try and use outside resources during these exam preps and dip into what I know already.
First, you'll want to avoid unofficial dumps, these are a sure way to get your exam invalidated as these are almost surely against policy. I would check out this page here which is an information guide, and pay special attention to the Skills Measured page, I've used these in previous exams and they are entirely the most beneficial part of an information pamphlet to me: https://community.esri.com/t5/esri-technical-certification-exams/esdp-2201-eig/ba-p/1585175
Another page would be this one here: https://community.esri.com/t5/esri-technical-certification-exams/arcgis-enterprise-system-design-pro...
This page goes over the information between the two versions of the exam, so shows what receives extra attention and such: https://community.esri.com/t5/esri-technical-certification-exams/arcgis-enterprise-system-design-pro...
My biggest tip is to take the Skills Measured section, throw it in an Excel sheet, and then link as many pages from the documentation page possible to those sections and follow that, create small Quizlet quizzes on pages that are significantly information packed, and then try to perform actions without documentation to test knowledge that you've learned.
Without specific example questions it's very difficult to see exactly what the content of the exam will be, but this should give you a very large general grip to adapt to the situations presented in the exam. Good luck when you take it!
Cody
