AI-300 MLOps Engineer Associate: 5 Practice Tests, 250 Qs

Are you ready for AI-300? These five timed practice tests tell you, domain by domain, before you book the exam.AI-300, Operationalizing Machine Learning and Generative AI Solutions, is the exam for the Microsoft Certified: Machine Learning Operations Engineer Associate. This course contains 250 original questions written against the official AI-300 study guide (last updated March 5, 2026) and checked against current Microsoft Learn documentation, including the Microsoft Foundry naming and role names.AI-300 replaced DP-100, which retired on June 1, 2026. The model lifecycle is still there, but the exam now expects you to think like an operations engineer: infrastructure as code with Bicep and the Azure CLI, GitHub Actions with OIDC, managed networks and private endpoints, managed identities and RBAC. Three domains, together 40 to 55 percent of the exam, cover generative AI operations on Microsoft Foundry: deployment types and provisioned throughput, prompt versioning, evaluation and safety, tracing and cost, RAG tuning and fine-tuning. DP-100 practice material prepares you for the wrong exam.The five AI-300 tests build up in difficulty:Test 1, Groundwork: core concepts, one idea per question.Test 2, In Practice: short scenarios that separate features that are easy to confuse.Test 3, Trade-offs: two answers look right, one constraint decides.Test 4, Under the Hood: CLI, SDK, YAML, settings and limits.Test 5, Exam Day: a full-length simulation with long, multi-constraint scenarios.Every answer option has its own feedback, so you learn why a wrong answer is wrong and what it actually is. Every question also has an overall explanation with a link to the Microsoft Learn page it is based on.Each test has 50 questions spread over the five exam domains in the official weighting, and Udemy reports your score per domain after each attempt. The pass mark is 80 percent for Tests 1 to 4 and 85 percent for Test 5, higher than the real exam on purpose.What this course is not: it is not a video course and not a copy of real exam questions. It is a set of practice exams that test and explain. Use it alongside hands-on work in Azure and the free Microsoft Learn training for AI-300.Frequently Asked QuestionsAre these real exam questions?No. All questions are original and based on the official exam objectives. They match the style, difficulty and topic weighting of the real exam, without copying it.How do the five practice tests work?The tests increase in difficulty. Start with Practice Test 1 to find your weak areas, study those topics and move on. Practice Test 5 is the hardest and serves as a final check before your exam.Can I review my answers?Yes. After each attempt you can review every question, with a detailed explanation of why the correct answer is right and why the other options are wrong.What score should I aim for?Each test has a passing score in line with the real exam. Aim for consistent scores of 85% or higher before booking your exam. You can retake every test as often as you like.Are the questions up to date?Yes. The questions follow the current official exam objectives and are updated when the exam changes.Is this course enough to pass the exam?These tests check your readiness and show your knowledge gaps. Combine them with the official learning materials and hands-on practice for the best results.