Which should be verified before enabling de duplication and compression?

Which storage policy can be assigned to virtual machines In a 5-node, all flash vSAN cluster, to provide the highest level of redundancy?

Three-months ago, an administrator deployed vReahze Operations Manager from vCenter to manage his newly deployed four-node vSAN 6.7 All-Flash cluster. What must the administrator do to continue using vRealize Operations Dashboards for vSAN?

Which is true of the vSAN iSCSI target service?

An administrator would like to put a vSAN host in an existing vSAN Cluster in maintenance mode. vMotion is configured and DRS is set to Fully Automated and all other advanced settings are their defaults.
The administrator uses this PowerCU command:
Set-VMHost -VMHost "esxi-hoat01.corp.local" -State "Maintenance"
What is the default behavior?