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Microsoft Certified: Azure AI Fundamentals AI-900 · Domain 2: Fundamental principles of machine learning on Azure

Features and labels, training and validation data, and how a model is trained and then used for inference

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Last reviewed September 25, 2026 · Leer en español

Machine learning starts with data, usually arranged as a table. Each row is an observation (one house, one patient, one transaction) and each column is a value describing it. Understanding what the columns are for is the foundation of every other ML topic on AI-900.

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