Microsoft Azure Architect Design (AZ-304) Practice Test

Using Azure Site Recovery is an effective way to replicate on-premises workloads to Azure while ensuring minimal downtime during migration. This service provides disaster recovery capabilities by continuously replicating workloads to a secondary location in Azure. The key advantage of Azure Site Recovery is its ability to allow for near real-time replication. This means that in the event of an intended migration; you can switch over to the cloud environment with minimal disruption to the ongoing business operations.

When preparing for a failover, Azure Site Recovery allows you to test the migration process without impacting the production environment. This pervasive testing capability ensures that the workloads will function as expected once they are fully migrated. Post-migration, workloads can run in Azure as if they were on-premises, enabling organizations to achieve a seamless transition with little or no downtime.

Other options serve different purposes: Azure Data Box is focused on transferring large amounts of data physically, Azure Traffic Manager is about load balancing and managing traffic for applications, and Azure Migrate provides tools for assessing and migrating workloads but does not inherently provide the continuous replication necessary for minimal downtime during the migration process. Therefore, Azure Site Recovery is the most suitable choice for maintaining business continuity during workload migration.