Solving the graphic vignettes is just like developing buildings in adherence to a set of standards. They aren’t looking for anything fancy, just up to code and efficient space planning. Remember to keep thinking basic stuff when working out the vignette.
To find the NCARB practice software for each exam (along with their respective study guides) follow this link on NCARB.org: http://ncarb.org/en/ARE/Preparing-for-the-ARE.aspx
Graphic Vignettes per ARE Sections:
Programming, Planning & Practice
Site Planning & Design
Building Design & Construction Systems
Mechanical & Electrical Plan
Construction Documents & Services