Microsoft Azure Data Fundamentals DP-900 Practice Question
A data engineer receives device telemetry logs that arrive as JSON files. Each file contains key-value pairs and nested arrays but no fixed columns. You must classify the data type to choose an appropriate Azure storage solution. Which category does this JSON telemetry data fall into?
JSON documents store information as key-value pairs and often include nested objects or arrays. They have an inherent, flexible schema but do not require a rigid table structure with predefined columns, so they are considered semi-structured data. Structured data fits well into relational tables, while unstructured data (such as images or free-form text) lacks any consistent schema. The term "relational data" refers specifically to structured data managed in relational databases, not to JSON files.
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Microsoft Azure Data Fundamentals DP-900
Describe core data concepts
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