Because South Dakota uses a 75% threshold on both portions independently, build separate study blocks for the 52-item state outline (especially Chapter 36-21A licensing statutes, SDREC commission duties, trust accounting, and agency disclosure rules) and the 90-item National Broker principles block with scenario-based practice. If you pass one portion but fail the other, schedule a retake of only the failed portion before your one-year examination fee validity expires. PSI does not allow same-day retakes; you may schedule the next attempt as early as the day after your failed appointment depending on seat availability. When you want interactive reps today, use Casa Academy's free practice tool using the embedded practice diagnostic.