Which two statements are true about a vSAN Cluster when the vCenter Server managing it is offline? (Choose two.)

A hardware 10 controller manufacturer has released a new version of firmware which brings performance improvements to the controller that the vSAN disk group is currently using. The administrator would like to upgrade to the new firmware version.
Which action should the administrator perform?

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?