Microsoft Azure Data Fundamentals DP-900 Practice Question
You are configuring Azure Cosmos DB for a web application that maintains a user session. After a document is written, the same user must always read the most recent version during that session, but other users can temporarily see an earlier version. Which consistency level meets this requirement while still allowing high global performance?
Session consistency provides a "read-your-writes" guarantee within a client session, so the writer sees its own committed updates immediately. Outside that session, reads can be slightly stale, which improves latency and throughput compared to strong or bounded-staleness consistency. Strong consistency forces all clients to see the latest version, increasing latency. Eventual and consistent prefix offer no read-your-writes guarantee, so even the writing session could receive older data. Therefore, session consistency is the appropriate choice.
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Microsoft Azure Data Fundamentals DP-900
Describe considerations for working with non-relational data on Azure
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