Microsoft Azure Data Fundamentals DP-900 Practice Question
You are designing an application that will collect millions of JSON-formatted sensor events each day. The event schema can evolve over time, and you must be able to look up individual events quickly by a unique combination of partition and row keys while keeping storage costs low. Which Azure data service should you choose?
Azure Table storage is a NoSQL key-value store that keeps data in tables made up of entities identified by a partition key and a row key. The service is schema-less, so you can add or omit properties without altering any predefined structure, which suits evolving JSON payloads. Table storage is also optimized for rapid key-based lookups and is priced on a pay-per-use model, making it cost-effective for very large data sets. Azure Blob storage is designed for unstructured objects but does not provide indexed key pairing for fast entity retrieval. Azure SQL Database is a relational store that requires a fixed schema and incurs higher cost for massive scale. Azure File storage offers file shares over SMB and is not intended for record-level queries. Therefore, Azure Table storage best meets the requirements.
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Microsoft Azure Data Fundamentals DP-900
Describe considerations for working with non-relational data on Azure
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