After upgrading an ESXi host to vSphere 5.x from vSphere 4.x, which three actions must be taken? (Choose three.)
Update any scripts that reference host SCSI devices.
Configure ESXi host networking
Reconnect managed hosts to vCenter Server
Configure the ESXi firewall
"If vCenter Server manages the host, you must reconnect the host to vCenter Server by right-clicking the host in the vCenter Server inventory and selecting Connect."