AB-620: AI Agent Builder Associate - 250 Practice Questions

Are you ready to sit AB-620?That is the only question this course answers, and it answers it five times over. AB-620 leads to the Microsoft Certified: AI Agent Builder Associate credential. It is aimed at professional developers and advanced builders, and it reaches well past building an agent in the maker portal: Model Context Protocol tools, custom connectors and REST APIs, multi-agent collaboration and A2A, Microsoft Foundry, computer use, agent evaluation, and lifecycle management with solutions and pipelines.The course holds 250 questions across five practice tests of fifty, written against the official skills measured of 21 April 2026. Each test carries the same domain mix as the blueprint, so the score report points straight at the area to revisit.Why older question banks are the wrong preparation. AB-620 is new. Much of the Copilot Studio material still circulating was written for the applied skill that was retired in 2026, or for the maker-level view of the product, and it stops before the parts this exam leans on. There is no official Microsoft practice assessment for AB-620 yet, and no learning path covering the testing and lifecycle domain. That gap is where most candidates lose points.The five tests build up. Groundwork checks the building blocks, one concept per question. In Practice puts them in short scenarios where neighbouring features are easy to confuse. Trade-offs gives you two defensible answers and one constraint that decides. Under the Hood asks for exact fields, limits and step order. Exam Day is a full-length simulation with long stems, mixed domains and the thinking time per question the real exam allows.Every question is explained. Each answer option has its own feedback saying why it is right or wrong and, when it is wrong, what that option actually is - which is how the distinction sticks. Underneath sits an explanation of the question with a link to the Microsoft documentation.Pass marks are 80 percent, and 85 for the simulation: deliberately above the real exam, because Microsoft reports a scaled score of 700 out of 1000 that is not the same as 70 percent of the points, and because practising at home is milder than a test centre.What this is not. It is not a course and will not teach you Copilot Studio from scratch. It is a question bank with worked explanations, built to sit next to the free official Microsoft Learn material and to tell you honestly whether you are ready to book AB-620.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.