CompTIA Network+ (N10-009)Network OperationsEasy
A disaster recovery plan specifies an RTO of 2 hours for a critical database server. During an unplanned outage, the IT team restores the server and confirms application functionality 90 minutes after the failure was detected. Which statement best describes this recovery event?
- AThe RTO was missed because the server should have failed over automatically
- BThe RPO was missed because data loss exceeded the recovery window
- CThe RTO was met because restoration occurred within the 2-hour target window
- DThe RPO was met because the restoration time was under 4 hours
Show answer & explanationAnswer & explanation
Correct answer: C. The RTO was met because restoration occurred within the 2-hour target window
Recovery Time Objective (RTO) measures the maximum acceptable time to restore a service after an outage. Since the server was restored in 90 minutes, well within the 2-hour RTO, the objective was successfully met.
Why the other options are wrong
- A. RTO doesn't require automatic failover, only restoration within the target time.
- B. This confuses RPO (data loss) with RTO (downtime duration); no data loss information was provided.
- D. RPO deals with data loss tolerance, not restoration time, and no RPO value was given.
Recovery Time Objective (RTO)
The maximum acceptable amount of time a system or service can be down after a disruption before business impact becomes unacceptable.
- Measures downtime tolerance, not data loss
- Compared against actual restoration time to judge DR success
- Works alongside RPO to define full DR requirements
Memory trick: RTO = Time to Turn it back On.