vRealize Automation silent installation uses an executable that references a text-based answer file.
In the answer file, you preconfigure system FQDNs, account credentials, and other settings that you typically add throughout a conventional wizard-based or manual installation. Silent installation is useful for the following kinds of deployments.
Deploying multiple, nearly identical environments
Repeatedly redeploying the same environment
Performing unattended installations
Performing scripted installations