The administration server is a major component of a WebLogic domain. I need to make available a standby administration server in case the main administration server in the domain crashes. Which utility will help me in doing this? (Choose the best answer.) 

Answer options:

A. Configuration Wizard
B. Domain Template Builder
C. pack/unpack
D. Enterprise Manager

D

Reference: http://docs.oracle.com/cd/E24628_01/install.121/e24089/appdx_standby_oms.htm#EMADV13364