A system administrator has installed the initial instance of the Standard Connection Server.
Connection to the vCenter Server fails during initial configuration.
Which three actions should the administrator perform to diagnose the failure? (Choose three.)

A.
that the ADAM Instance on the Connection Server can connect to the SQL Server database
used by vCenter Server

B.
that the username of the vCenter Server user has proper permissions within vCenter Server

C.
that the system hosting vCenter Server has an active network connection

D.
that both the vCenter Server and Connection Server are in the same Active Directory domain

E.
that the FQDN of the vCenter Server can be resolved from the Connection Server