An administrator has migrated a vCenter Server Appliance from version 5.5 to version 6.x. During the
migration, the administrator selected DHCP for the appliance and obtained a hostname from the DHCP server.
The administrator adjusts the hostname after the migration and uses a static IP and hostname.
What should the administrator do immediately after this change to prevent service failures?

A.
Regenerate the SSL certificates.

B.
Re-register components to Single Sign-On.

C.
Update the /etc/hosts file.

D.
Execute the command services.restart vmware-vpxd.

Explanation:

To resolve this issue, regenerate the vCenter Server certificate using a stronger public key strength.
Reference: http://kb.vmware.com/selfservice/microsites/search.do?
language=en_US&cmd=displayKC&externalId=2074942