What is a common method for auditing Vault's operations?

Using audit devices configured in the Vault server is the correct approach for auditing Vault's operations because it enables a structured and automated way to monitor and record all actions performed within the Vault. Vault's audit devices can log various types of events, including authentication attempts, secret accesses, and changes to configuration, providing a comprehensive trail of activity that can be crucial for compliance and troubleshooting purposes.

These audit logs can be sent to various backends such as file systems, syslog, or remote storage systems, making them accessible for review and analysis. This integration allows organizations to maintain an immutable record of operations, which is essential for maintaining security standards and responding to incidents.

In contrast, other methods like using third-party applications or manual logging of requests could introduce inconsistencies, potential for error, or lack of completeness. Regular system backups, while essential for disaster recovery, do not provide detailed insights into operational activities and do not serve the purpose of auditing per se. Hence, the use of integrated audit devices in Vault ensures a secure, reliable, and efficient way to track and audit its operations.