Microsoft - Azure Data Fundamentals Study Guide
This chapter builds the vocabulary that every later topic in the course depends on: how data is represented, where it lives, the file formats and database types that hold it, the workloads that read and write it, and the people who own each part of the lifecycle. It teaches you to recognize a data shape or a workload from a plain description and match it to the Azure service that fits, which is exactly the judgment the exam rewards.