Which two tasks should an administrator perform prior to upgrading NetBackup Appliances to version 3.0? (Select two.)
A. obtain necessary third-party plug-ins
B. decrease the size of the configuration volume
C. reset the appliance user password to the default value
D. delete previously downloaded release updates, client packages, and client add-ons
E. use the Migration Utility to capture pre-upgrade settings within a NetBackup Catalog Backup