A cluster of vSphere 6.5 and 6.7 hosts all have identical hardware. VMs are created on the 6.7 hosts with virtual hardware version 14. During routine maintenance on the 6.7 hosts, the VMs are unable to migrate to the 6.5 hosts.
Why are the VMs unable to migrate to the 6.5 hosts?

Which migration technique could be used to move a VM between vCenters while the VM is powered on?

A vSphere administrator is required to join all strategies ESXi hosts to an Active Directory domain for enhanced security.
Which utility would accomplish this?

Which VM storage policy rule category ensures all VMs for a department are on the same datastore?

An administrator manages a cluster containing Production and Test VMs. Production VMs run on a VSS port group and a storage array separate from the Test VMs. The administrator wants to prevent large (>500GB) file transfers in Test from impacting Production.
Which two configuration changes should the administrator make to achieve this? (Choose two.)