The complete AWS Certified Machine Learning Engineer - Associate study library — 12 lessons mapped to every domain and topic in the official exam guide. Free to read, no account needed.
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AWS publishes exactly what the MLA-C02 tests and how much each part is worth. Here it is — every domain, its weight, the topics inside it, and the lessons that cover them.
Collecting and storing data for ML and AI, transforming it and engineering features, and validating data quality and managing bias — for traditional ML and foundation models alike.
Choosing modeling approaches — traditional ML, managed AI services, foundation models and RAG — then training, fine-tuning and customizing models, and evaluating ML and GenAI performance.
Selecting deployment infrastructure for ML models, foundation models and agents, provisioning and scaling the resources behind them, and automating MLOps with CI/CD pipelines.
Monitoring models, agents and data in production, optimizing infrastructure and inference cost, and securing ML and AI workloads and endpoints.
Reading every note front to back is the slowest way to pass. The exam is weighted, so your revision should be too — the blueprint above tells you exactly where the marks are.
Data Preparation for ML and AI carries the most marks on the MLA-C02, so it earns the most of your attention. Work down the blueprint from the heaviest domain to the lightest rather than starting at domain 1 and grinding forward.
Read each lesson once without stopping to memorise — you are building a map, not a memory. On the second pass, read only the "what's tested" and key-takeaway blocks. If a takeaway surprises you, that lesson goes back on the pile.
Cover a lesson's key takeaways and try to say them out loud from the heading alone. Recall you can produce under your own steam is the only recall that survives a timed exam; recognition on a re-read is not the same thing.
Finishing the notes is not the goal — scoring is. Move to MLA-C02 practice questions early, then come back to the exact lessons your wrong answers point at. That loop is worth far more than a third read-through.
Exam structure, domain weights and scoring on this page come from the official MLA-C02 exam guide.