Crucial Exams

Microsoft Azure Data Fundamentals DP-900 Practice Question

A data engineer stores IoT device messages as JSON documents in Azure Blob Storage. The messages share some common fields but each device may include additional, optional fields. Which characteristic explains why these documents are considered semi-structured data?

  • They must conform to a rigid table with predefined columns and data types.

  • They are saved in a proprietary binary format that lacks any schema information.

  • They are automatically decomposed into multiple related tables to eliminate redundancy.

  • They contain self-describing key-value pairs, so each record can have a different set of attributes.

Microsoft Azure Data Fundamentals DP-900
Describe core data concepts
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