Microsoft AI-900 Study Group

AI-900 Mock Test – 55 practice questions covering Machine Learning, Computer Vision, NLP, Responsible AI & Azure ML Designer. Full explanations included. Can you score 100%?

📌 WHAT THIS MOCK TEST COVERS

✅ Machine Learning Fundamentals

✅ Responsible AI Principles

✅ Computer Vision

✅ Natural Language Processing (NLP)

✅ Conversational AI

✅ Azure ML Designer

⚠️ EXAM TRAPS COVERED IN THIS MOCK

🔴 Computer Vision vs. Custom Vision — when pre-trained isn’t enough

🔴 Regression vs. Classification — numerical vs. categorical outputs

🔴 AUC less than 0.5 — what it actually means (worse than random!)

🔴 Pipeline module order — a classic sequencing trap

🔴 NaN in language detection — when and why it returns null

🔴 “Least effort” chatbot scenarios — import vs. manual entry traps