CCAR-P Domain 3 Drill: 12 Integration Practice Questions, Explained

12 original practice questions for Domain 3 of the Claude Certified Architect Professional (CCAR-P) exam: Integration, 19% of the exam. Every question gets a pause, the answer, and a teardown of why each wrong option is wrong. The teardown is the point, not the answer. CHAPTERS 00:00 Cold open: the hardest item 00:59 How this drill works 01:25 Q1 · Database access for the triage agent 02:59 Q2 · One consumer, three REST endpoints 04:29 Q3 · Fourteen tools, wrong tool called 06:02 Q4 · A tool that returns a bare 404 07:21 Q5 · Duplicate purchase orders 08:31 Q6 · RAG over mixed-quality NCRs 10:03 Q7 · Hidden text in a supplier PDF 11:35 Q8 · The coding agent's toolbox 12:56 Q9 · Acting on behalf of the user 14:19 Q10 · Re-ranking against a four-hour SLA 15:52 Q11 · Observability from day one 17:26 Q12 · Three clients, one parts database 18:50 Three traps this domain reuses 19:43 Score yourself and what's next WHAT THIS DRILL COVERS Least privilege, authentication and capability bloat Tool design and MCP versus direct API RAG ingestion matched to document type Prompt injection through retrieved content Accuracy versus latency and observability HOW TO USE IT Pause at each countdown if you want more time. Score yourself as a share of the set and aim for 85% or better on practice sets. The real pass mark is scaled, so there is no fixed raw number to aim at. Most scenarios use Meridian Aerospace, a fictional tier-one manufacturer, as a running case study. VERIFY BEFORE YOU BOOK Domain weightings and item counts come from published third-party exam guides, captured September 2026, not from Anthropic's official blueprint. Check them against the official exam guide in Anthropic Partner Academy before you register. Unofficial practice and study content. Not affiliated with or endorsed by Anthropic. NEXT: Drill: Domain 1, Solution Design and Architecture #ClaudeCertification #CCARP #Anthropic #AIArchitecture #ExamPrep