Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
You are designing a single Azure SQL-based relational data store for a new B2C e-commerce platform. The database will start at 200 GB and is forecast to reach 600 GB within 12 months. Workload is unpredictable: it idles most nights but can surge suddenly during promotional campaigns. The SLA must guarantee at least 99.99 percent availability, and the business wants the solution to automatically scale compute up and down-and even pause-to reduce costs. Which Azure SQL service and compute tier combination should you recommend?
Deploy an Azure SQL Database in the Business Critical service tier configured to use the serverless compute tier.
Deploy an Azure SQL Database in the Hyperscale service tier using provisioned compute.
Deploy an Azure SQL Managed Instance in the Business Critical service tier using provisioned compute.
Deploy an Azure SQL Database in the General Purpose service tier configured to use the serverless compute tier.
Only Azure SQL Database in the General Purpose service tier supports the serverless compute tier. Serverless automatically scales vCores in response to workload demand and can pause during prolonged inactivity, billing only for storage while paused-meeting the requirement to minimize costs during idle periods. General Purpose also provides a 99.99 percent availability SLA and supports databases well beyond 600 GB. Business Critical and Hyperscale tiers require provisioned compute; serverless is not available for them. Azure SQL Managed Instance does not offer a serverless option, and choosing any provisioned tier would prevent automatic pausing and incur continuous compute charges, violating the cost requirement.
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Microsoft Azure Solutions Architect Expert AZ-305
Design data storage solutions
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