What strategy is employed for data backup and recovery after a failure?

The strategy that is employed for data backup and recovery after a failure is a Disaster Recovery Plan. This plan is a comprehensive set of procedures that an organization implements to recover data and resume operations after a disruptive event, such as a natural disaster or a system failure.

A Disaster Recovery Plan typically outlines the processes for data backup, how to restore access to critical applications, and the steps necessary to return to normal operations. It ensures that in the event of a failure, data can be restored from backups and operations can be resumed with minimal downtime and data loss.

This plan is distinct from the other options provided. Data archiving focuses on the long-term storage of data that is not regularly accessed, rather than on recovery after a failure. A Business Continuity Plan is broader in scope, encompassing all aspects of maintaining business operations during disruptions, while a Data Migration Strategy pertains to transferring data from one system to another and does not specifically address backup and recovery processes.

Thus, the emphasis on recovery from failures positions the Disaster Recovery Plan as the appropriate choice in this context.