Microsoft Azure Data Fundamentals DP-900 Practice Question
You are reviewing several data sources for migration to Azure. One source contains marketing videos, high-resolution images, and recorded customer calls, none of which follows a predefined schema. Which statement correctly describes this data set?
It is transactional data that must enforce referential integrity constraints.
It is semi-structured data that can be queried directly with SQL because it always uses key-value pairs.
It is unstructured data that is best stored as files in a data lake or blob container.
It is structured data that should be modeled in a relational table with fixed columns.
The files described do not conform to a rigid, tabular schema and are typically stored as binary or text blobs rather than rows and columns. Such assets are classified as unstructured data and are usually placed in services like Azure Blob Storage or a data lake. Structured data, by contrast, resides in relational tables with fixed columns, while semi-structured data has some self-describing tags such as JSON or XML. Transactional data refers to records that participate in atomic, consistent, isolated, and durable operations and normally relies on referential integrity-none of which applies to the video, image, and audio files in the scenario.
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Microsoft Azure Data Fundamentals DP-900
Describe core data concepts
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