CS Professional · Artificial Intelligence, Data Analytics and Cyber Security - Laws and Practice · Information Systems
A company's disaster recovery plan states that after an outage, systems must be running within 4 hours, and no more than 30 minutes of transactions may be lost. A backup is taken every 2 hours and the recovery site takes 6 hours to bring up. Which statement is correct?
Neither target is met. The recovery time objective is 4 hours but the site needs 6 hours. The recovery point objective is 30 minutes of data loss but backups every 2 hours could lose up to 2 hours. Both the time and data-loss limits are exceeded.
- ABoth the RTO and RPO targets are met
- BRTO is met but RPO is not met
- CRPO is met but RTO is not met
- DNeither RTO nor RPO is metCorrect
Explanation
RTO is the target time to restore service, here 4 hours; the recovery site needs 6 hours, so RTO fails. RPO is the maximum tolerable data loss, here 30 minutes; backups every 2 hours can lose up to 2 hours of data, so RPO also fails. Hence neither is met.
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