AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A company with a strict RTO requires their system to be operational with minimum downtime in the event of a disaster. Which DR strategy should they implement to ensure an almost immediate failover?
Active-Active failover is a DR strategy involving running your workload simultaneously in more than one AWS region. This setup allows for immediate failover because the workload is always on and serving traffic in all regions. If one region becomes unavailable, the other region(s) can continue to handle the workload without significant interruption, thus meeting stringent RTO objectives.
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What is RTO and how does it impact disaster recovery strategies?
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How does Active-Active failover ensure high availability in AWS?
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What are the key differences between Active-Active and other DR strategies like Warm Standby?