An application consists of multiple EC2 instances in an Auto Scaling group. The architect wants to ensure that the application remains available even if an entire AWS Region fails. What is the best strategy?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: Multi-Region Architecture with Route 53 Failover Routing

For regional resilience, you must deploy the application in at least two regions and use DNS-based failover....

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Real Exam ScenarioScenario Based

An application consists of multiple EC2 instances in an Auto Scaling group. The architect wants to ensure that the application remains available even if an entire AWS Region fails. What is the best strategy?

✓ Correct Answer & ExplanationScenario Based

Correct Answer

Multi-Region Architecture with Route 53 Failover Routing

Why This Answer Is Correct

For regional resilience, you must deploy the application in at least two regions and use DNS-based failover.

📚 What This Question Tests

This question evaluates your knowledge of Scenario Based — a core concept tested in AWS Certified Solutions Architect – Associate (SAA-C03). Understanding Scenario Based is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.