What file is updated to perform an automatic failover in a CyberArk Disaster Recovery (DR) solution?

In a CyberArk Disaster Recovery (DR) solution, the file that is updated to perform an automatic failover is the padr.ini file. This file is significant as it contains configuration settings and parameters specific to the PIM (Privileged Identity Management) and DR setup. It plays a crucial role in defining how the system behaves during a failover event, ensuring that the correct processes are initiated and that access to privileged accounts is maintained without interruption.

The other files listed have their specific purposes within the CyberArk framework. For instance, the vault.ini file mainly contains general vault settings, the dbparm.ini file holds database connection parameters, and the cpm.ini file is related to the Central Credential Provider and its operational settings. While these files are vital to the overall functioning of the CyberArk environment, they do not cover the specific configurations necessary for automatic failover in a DR scenario. Therefore, the padr.ini file is the correct choice for managing failover capabilities in CyberArk's DR solution.