Original scenarios
We write practice around public skills, real design constraints, and plausible technical decisions—not copied exam content.
WHY PREP WITH PROOF EXISTS
DP-800 practice should give you answers you can verify.
Most question banks tell you only whether you clicked the stored answer. Prep With Proof was built around a harder question: why is each option right or wrong, and what does Microsoft's own documentation say?
Try 3 DP-800 questions free →
Evidence over authority
Every explanation links to an official source. You should be able to inspect the proof and disagree intelligently.
Confidence is data
Correctness and confidence are measured separately. Wrong + sure is a different learning problem from wrong + guessing.
Corrections stay visible
Challenges are reviewed against current documentation. Weak evidence means flag, correct, or remove—not defend automatically.
Source → scenario → independent check → publish.
- Map the item to the current public exam blueprint.
- Write an original scenario with enough context to test judgment.
- Verify the key claim against an official vendor page.
- Review every distractor so it is wrong for a specific reason.
- Recheck content when the blueprint or linked documentation changes.
The first product is DP-800. The engine and review process are designed so a new certification can be added without rebuilding the product experience.