You are a network administrator at Certkiller . You want to upgrade the publisher database server to CCM 3.3. What additional task are you required to perform?

A.
Manually format the hard drive.

B.
Replicate the database from the subscriber.

C.
Perform a complete re-image of the server.

D.
Remove the server’s account from the domain.

Explanation:
You must perform the following tasks on all servers at the same time:
1. Remove the System From the NT Domain or Microsoft Active Directory Domain and Reboot the
Server (Required, If Configured)
*Page 20, Upgrading Cisco CallManager Release 3.3(4)