Crucial Exams

Microsoft Azure Solutions Architect Expert AZ-305 Practice Question

Contoso manufactures industrial sensors that each send a 2-KB JSON message every second, producing about 2 TB of data daily. Data engineers query the most recent 30 days from Azure Synapse Analytics with sub-minute latency to power operational dashboards. After 30 days, the data is seldom read, but regulations require it be retained and available for ad-hoc queries within a few minutes for seven years. You must design a cost-efficient storage solution that meets these requirements with minimal operational overhead. Which option should you recommend?

  • Store the telemetry in Azure Cosmos DB (Core SQL API) with analytical store enabled and set a 7-year time-to-live (TTL) policy.

  • Persist the data in an Azure Data Explorer cluster configured with a seven-year retention policy.

  • Ingest the telemetry into Azure Data Lake Storage Gen2 in the Hot access tier, then apply a lifecycle management rule that moves files to the Cool tier after 30 days and retains them for seven years.

  • Archive the telemetry directly to the Azure Blob Storage Archive tier and rehydrate data on demand when queries are required.

Microsoft Azure Solutions Architect Expert AZ-305
Design data storage solutions
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