AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A multinational corporation needs to maintain operational continuity for a mission-critical system even in the event of a natural disaster that could impact an entire geographic area where their compute resources are located. What architectural strategy should they use to address this requirement?
Expand the deployment to include compute resources in another Availability Zone within the initial geographic area of operations
Implement a Network Load Balancer to route traffic efficiently
Utilize a Content Delivery Network to cache data closer to end-users globally
Distribute the application's deployment across multiple Availability Zones in different regions
The architectural strategy that addresses the need for operational continuity during a geographic-specific disaster is deploying the system across multiple AWS Regions. This architecture provides redundancy and high availability by leveraging the isolated and independent infrastructure of different regions. It ensures that even if one region experiences an outage or is affected by a regional disruption, another region can continue to operate and serve the system's users. Choosing another Availability Zone does not protect against regional disasters because Availability Zones are within the same region. A Network Load Balancer and Amazon CloudFront primarily provide traffic management and content delivery optimizations, respectively, which while valuable, do not protect against the failure of a region's infrastructure.
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