Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
You administer an 8-TB Microsoft SQL Server 2012 database that supports a mission-critical retail application running 24 hours a day. The business has approved moving this workload to Azure SQL Managed Instance. During the move you must keep the source database fully operational, guarantee transactional consistency, and limit the final cutover to less than two hours. Which migration approach should you recommend?
Export the on-premises database to a BACPAC file, upload it to Azure Storage, and import it into Azure SQL Managed Instance during maintenance.
Implement SQL Server log shipping to an Azure SQL virtual machine and restore the logs to Azure SQL Managed Instance during the cutover window.
Provision Azure Database Migration Service in the Premium tier and perform an online migration to Azure SQL Managed Instance, then execute a brief controlled cutover.
Create a Data Factory pipeline that incrementally copies tables to an Azure SQL Database, then repoint the application to the new endpoint.
Azure Database Migration Service (DMS) in its Premium tier supports online migrations from on-premises SQL Server to Azure SQL Managed Instance. In an online migration, DMS uses continuous replication, keeping the source database synchronized until you perform a brief cutover-typically well under two hours-while preserving full transactional consistency. Azure Data Factory copy, log shipping to an Azure VM, and BACPAC export/import all require longer outage windows or cannot guarantee full transactional consistency, making them unsuitable for this requirement.
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Microsoft Azure Solutions Architect Expert AZ-305
Design infrastructure solutions
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