Your client would like to be able to back up and restore the entire Cisco Unity server, including the operating system and SQL database in case of a catastrophic failure of the Cisco Unity server. Which Cisco Unity or third-party utility would you tell them to use?

A.
Cisco Unity Database Recovery Tool

B.
software such as Symantec/Veritas Backup Exec

C.
Cisco Unified Communications Manager Backup and Restore Utilities

D.
Cisco Unity Disaster Recovery Backup and Restore Utilities with full backup options selected