Explanation/Reference:
You can perform the following in silent mode:
* (A) Installing Enterprise Manager Grid Control Using a New Database
* ( E) Installing Enterprise Manager Grid Control Using an Existing Database
* (C) Installing Additional Management Service
Installing Enterprise Manager 10g Grid Control Release 5 (10.2.0.5) Using Existing Oracle Database 11g
Installing Additional Management Service Using Existing Oracle Database 11g
Note:
* Silent-mode installation is a noninteractive method of installing your software that requires the use of an
XML properties file for selecting installation options. You can run silent-mode installation in either of two
ways: as part of a script or from the command line. Silent-mode installation is a way of setting installation
configurations only once and then using those configurations to duplicate the installation on many
computers.
Reference: Installing Enterprise Manager Grid Control