Which step is required when adding an existing hard disk that is configured as a boot disk during virtual machine creation?

vCenter Server experiences a catastrophic failure and the administrator must restore from a vCenter Server backup stored on an FTP server.
What must the administrator do to restore vCenter Server? (Choose the best answer.)

Which feature is a pre-requisite for configuring admission control on a cluster?

vCenter High Availability (HA) protects vCenter Server against host and hardware failures.
What is the minimum number of ESXi hosts required to enable this capability? (Choose the best answer.)

Which two statements are true regarding the use of firmware update packages in vSphere Lifecycle Manager? (Choose two.)