SAA-C03 · Question #408
SAA-C03 Question #408: Real Exam Question with Answer & Explanation
The correct answer is B: Create primary and secondary DNS records in Amazon Route 53. Configure health checks and a. Amazon Route 53 supports failover routing policies, which use health checks to route DNS queries to a secondary Region only if the primary endpoint fails. This design ensures only one Region is active for traffic at any given time. This is the recommended architecture for active-
Question
A solutions architect is designing a multi-Region disaster recovery (DR) strategy for a company. The company runs an application on Amazon EC2 instances in Auto Scaling groups that are behind an Application Load Balancer (ALB). The company hosts the application in the company's primary and secondary AWS Regions. The application must respond to DNS queries from the secondary Region if the primary Region fails. Only one Region must serve traffic at a time. Which solution will meet these requirements?
Options
- ACreate an outbound endpoint in Amazon Route 53 Resolver. Create forwarding rules that
- BCreate primary and secondary DNS records in Amazon Route 53. Configure health checks and a
- CCreate a traffic policy in Amazon Route 53. Use a geolocation routing policy and a value type of
- DCreate an Amazon Route 53 profile. Associate DNS resources to the profile. Associate the profile
Explanation
Amazon Route 53 supports failover routing policies, which use health checks to route DNS queries to a secondary Region only if the primary endpoint fails. This design ensures only one Region is active for traffic at any given time. This is the recommended architecture for active- passive, multi-Region DR strategies.
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