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A company needs to protect a workload against the simultaneous failure of an entire AWS Region (for example, a natural disaster wiping out multiple data centers in the same geographic area). Which AWS deployment pattern best addresses this requirement?

AStoring static assets in Amazon CloudFront edge caches
BMulti-AZ deployment in a single Region with EBS snapshots
CA single EC2 instance with a Reserved Instance commitment
DMulti-Region active-passive deployment with data replication between Regions
Answer & Solution
Correct answer: D. Multi-Region active-passive deployment with data replication between Regions
Multi-AZ protects against a single-AZ failure but not against a whole-Region disaster. Only a multi-Region architecture (active-active or active-passive with cross-Region replication) survives an entire Region going offline. Reserved Instances and CloudFront don't address durability of stateful workloads.
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