Which of the following is required for an organization to properly manage its restore process in the event of system failure?

A Disaster Recovery Plan (DRP) is essential for managing the restore process after a system failure. It outlines the procedures and resources needed to recover and restore IT infrastructure and operations to an acceptable state. An Incident Response Plan (IRP) focuses on immediate actions to contain and eradicate security incidents, but doesn't cover full system restoration. Recovery Point Objective (RPO) is a metric defining acceptable data loss, not a plan for recovery. The Software Development Life Cycle (SDLC) is a process for developing software, unrelated to disaster recovery.