An emergency mass-notification application improved architecture on paper but has not practiced recovery under failure. Leadership wants quarterly reliability improvement evidence. Which practice best exercises recovery?
Select an answer to reveal the explanation.
Short Explanation
Paper DR plans are bedtime stories until you pull a plug on purpose. Quarterly chaos and failover drills show whether the mass-notification stack actually recovers—and what still breaks.
Full Explanation
Practiced recovery is a core reliability improvement: controlled failure testing and failover drills validate RTO/RPO assumptions for emergency workloads and reveal gaps before real events. Skipping exercises, disabling redundancy, or waiting for a live outage leaves unverified recovery paths.