An administrator creates a DRS cluster of eight ESXi 6.x hosts. There are 10 virtual machines balanced across the hosts. An attempt to place the first host into maintenance mode fails. What are two re

In Partially Automated DRS mode, the cluster only automates initial VM placement and generates recommendations for load balancing but does NOT automatically migrate VMs off a host - without automatic evacuation, the host cannot enter maintenance mode and the operation fails. Fully Automated mode is required for DRS to handle the VM migrations needed to clear the host.

The configuration described in choice B does not prevent vMotion migration of the VM to another host in the DRS cluster, so it would not cause the maintenance mode operation to fail.

The configuration described in choice C does not prevent vMotion migration of the VM to another host in the DRS cluster, so it would not cause the maintenance mode operation to fail.

A VM configured with an anti-affinity rule or similar DRS constraint that cannot be satisfied on any remaining host in the cluster prevents vMotion migration, leaving at least one VM stranded on the host and causing the maintenance mode operation to fail.