Distributed databases have become almost commonplace in business systems. One of the problems with distributed databases is that you sometimes do not have a skilled Database Administrator (DBA) at every site. When it is time to upgrade your remote database, someone must tell the installation process what to do.
Oracle Universal Installer lets you predefine the answers to questions that are usually defined during the installation process. Copy the example response file from the installation CD-ROM, customize it as needed, and then tell the Universal to use it. In Windows, the command for a silent installation is:

setup.exe -responseFilefilename -silent

runInstaller -responseFile filename -silent