An online retailer stores orders in Azure Cosmos DB and wants near real-time sales dashboards in Azure Synapse Analytics. The checkout workload must not slow down. Which benefit does Azure Synapse Link provide?
Show answer and explanation
Answer: B
Azure Synapse Link for Azure Cosmos DB maintains an analytical store that is kept in sync with the transactional store, so analytical queries run against that copy and checkout traffic is not affected. This supports near real-time dashboards on operational data. It does not change storage pricing, it does not adjust request units, and it is not an encryption feature. Those are separate Cosmos DB concerns.
Why the other options are wrong
- A. Synapse Link does not change Cosmos DB storage pricing. Its purpose is to enable analytics on operational data without moving that workload onto the transactional throughput.
- C. Request unit adjustment is a Cosmos DB throughput feature, such as autoscale throughput settings. Synapse Link is about analytical access, so it does not perform this function.
- D. Encryption for stored documents is handled by platform and key management features, not by Synapse Link. The link exists to enable analytics, not to protect individual fields.