DP-900Domain 3: Describe Considerations for Working with Non-Relational Data on AzureNon-Relational Data on AzuremediumSingle choice
A global app needs single-digit-millisecond reads/writes for JSON documents in EVERY region users live — with multi-region replication built in. Which service?
A.Azure SQL Database
Relational — single-region writes by default.
B.Azure Cosmos DB
Global distribution + low latency = Cosmos. Correct.
C.Azure Table Storage
Table Storage is simpler key-attribute — no global replication features like Cosmos.
D.Azure Files
Files is SMB file shares — not a document DB.
Why this answer
Cosmos DB is the globally-distributed NoSQL database — turnkey multi-region replication, multi-model APIs, tunable consistency, and SLAs on latency. Its signature differentiator is global distribution.
Correct answer: B · Last reviewed 2026-11-05
Official AWS references
Practice this interactively
Answer without seeing the solution first in the Non-Relational Data on Azure practice session.
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