# Disaster Recovery Planning (DRP) One-sentence definition: Technical plans and runbooks to restore IT services to meet RTO/RPO after disruption. ## Key Facts - Scope: systems, data, networks, facilities, dependencies. - Runbooks: step-by-step recovery and validation procedures. - Prioritize based on BIA criticality and interdependencies. - Include failover/fallback, data integrity checks, communication. - Test regularly; update after changes or lessons learned. - **Verify:** check official (ISC)² CBK and current exam outline. ## Exam Relevance - Choose architecture to meet stated RTO/RPO. **Mnemonic:** “Recover, Validate, Resume.” ## Mini Scenario Q: Data restored but apps fail—what’s missing? A: Application recovery/validation steps in DR runbooks. ## Revision Checklist - List 3 DR artifacts. - Explain failover vs fallback. - Name a test trigger. ## Related [[Backup Strategies (Full, Incremental, Differential)]] · [[Redundancy and Resilience (HA, Clustering, FT)]] · [[Disaster Recovery Sites (Hot, Warm, Cold)]] · [[BCP DR Testing Methods]] · [[RTO, RPO, WRT]] · [[Domain 1 - Index]]