A data analytics and AI platform based on Apache Spark, optimized for Azure. It provides collaborative notebooks, managed clusters, lakehouses with Delta Lake, and centralized governance with Unity Catalog.
In DP-900 it appears alongside Microsoft Fabric as a large-scale analytics service. Spark Structured Streaming lets you process streaming data with the same engine used for batch workloads.
Azure Databricks is a concept that can show up on the exam. Check the full guide to see it in context.