# Recovery Objectives (RTO, RPO, WRT, MTD) Backlink: [[Domain 1 - Index]] **Definition:** Time and data-loss targets that shape continuity and recovery planning. ## Key Facts - RTO: max acceptable downtime to restore service. - RPO: max acceptable data loss measured in time. - WRT: time to configure/restore to operational state. - MTD/MAO: maximum tolerable disruption before severe impact. - RTO must be ≤ MTD; backups/replication designed to meet RPO. - **Verify:** check official (ISC)² CBK and current exam outline. >[!tip] **Exam Relevance** - Compare options to meet given RTO/RPO - Order metrics correctly and interpret relationships >[!note] **Mnemonic** - “Restore Time (RTO), Record Point (RPO).” ### Example Q: RPO 15 min—what backup strategy? A: Near-real-time replication/journaling. ## Revision Checklist - [ ] Define RTO/RPO/WRT/MTD - [ ] Map metrics to site types - [ ] Recognize RTO conflicts - [ ] Tie to SLAs ## Related [[Business Impact Analysis (BIA)]] · [[Disaster Recovery Strategies (Hot/Warm/Cold)]] · [[Business Continuity Planning (BCP) Overview]] · [[Service Level Agreements and Contracts]] · [[Security Metrics, KPIs, and KRIs]] #cisSP #domain-1 #concept