Which method is effective for verifying system operations after disaster recovery?

Implementing gradual user access is an effective method for verifying system operations after disaster recovery because it allows organizations to ensure that systems and applications function correctly under controlled conditions before opening access to all users. This approach minimizes the risk of overwhelming the system with too much traffic or untested functions at once.

By gradually reintroducing users, organizations can monitor system performance, identify any issues that arise, and address them in a timely manner. This method provides a safety net, enabling IT teams to make necessary adjustments and verify that all critical functionalities work properly without exposing all users to potential risks or outages that might occur if full access is granted immediately. This controlled access also allows for more manageable testing of key components and services, ensuring readiness and stability within the IT infrastructure post-recovery.