You have three Azure virtual machines named VM1, VM2, and VM3 that host a multitier application. You plan to implement Azure Site Recovery. You need to ensure that VM1, VM2, and VM3 fail over as a…

An availability zone provides high availability within an Azure region by distributing VMs across physically separate locations, but it does not orchestrate group failover across regions using Site Recovery.

A recovery plan in Azure Site Recovery orchestrates the failover of multiple virtual machines as a single, coherent unit. It allows you to define the boot order, add scripts, and integrate manual actions to bring a multi-tier application online in the correct sequence at the recovery site, thus ensuring the VMs fail over as a group.

An availability set is a logical grouping of VMs within an Azure data center to ensure they are distributed across fault domains and update domains for high availability, but it does not orchestrate multi-VM group failover in Azure Site Recovery.