What is the AWS Disaster Recovery strategy ‘Multi-Site Active-Active’ and how does it differ from ‘Pilot Light’?

Question

AWS Cloud Practitioner — Hard

What is the AWS Disaster Recovery strategy ‘Multi-Site Active-Active’ and how does it differ from ‘Pilot Light’?

Accepted Answer

Multi-Site Active-Active in AWS Disaster Recovery runs workloads in two regions simultaneously with near-zero RPO and RTO, while Pilot Light keeps only core services running in DR with a minimal footprint that must be scaled up during disaster. This results in recovery times of seconds for Active-Active and minutes to hours for Pilot Light.