For business continuity in Azure Virtual Desktop, which solution is best to replicate session host virtual machines to a secondary location while minimizing administrative effort?

The solution that best replicates session host virtual machines to a secondary location for business continuity while minimizing administrative effort is Azure Site Recovery. This service specifically focuses on disaster recovery and ensures that your virtual machines can be replicated to another Azure region or on-premises infrastructure.

Azure Site Recovery automates the replication of your virtual machines, allowing for consistent recovery point objectives (RPOs) and recovery time objectives (RTOs), which are crucial for maintaining business operations in the event of a failure or outage. The easy-to-use interface and integration with Azure services mean that much of the management overhead is reduced, making it a preferred choice for organizations looking to maintain business continuity with minimal administrative workload.

In contrast, Azure Data Explorer is primarily designed for analyzing large amounts of data and isn't tailored for virtual machine replication. Azure Data Factory focuses on data integration and transformation tasks, which do not directly correlate to virtual machine availability or replication. Azure Traffic Manager is a load balancing solution for directing user traffic to services in different locations, but it does not provide functionality for replicating virtual machines. Therefore, Azure Site Recovery stands out as the most effective solution for session host VM replication in this context.