Crucial Exams

AWS Certified Solutions Architect Professional SAP-C02 Practice Question

Your company hosts a public API behind an Application Load Balancer (ALB) in the us-east-1 Region. For disaster-recovery (DR) purposes, an identical stack exists in us-west-2. The business must meet an RTO of 15 minutes and wants DNS to fail over automatically if the primary Region becomes unavailable. Operations teams also need to run DR drills by deliberately routing traffic to the secondary Region-without changing client endpoints or adding complex manual steps. Which Amazon Route 53 configuration will satisfy all of these requirements with the least ongoing operational effort?

  • Create two alias records that use Geolocation routing, mapping all U.S. traffic to the us-east-1 ALB and default traffic to the us-west-2 ALB to achieve predictable routing.

  • Create two alias records that use Latency-based routing with Evaluate Target Health enabled for both ALBs so that Route 53 sends traffic to the Region offering the best latency.

  • Create two alias records that use the Failover routing policy: designate the us-east-1 ALB as the primary record and associate it with a health check; designate the us-west-2 ALB as the secondary record. In DR tests, temporarily flip the primary and secondary roles or disable the primary health check to route traffic to the standby.

  • Create two alias records that use a Weighted routing policy, assigning weight 100 to the us-east-1 ALB and weight 0 to the us-west-2 ALB; adjust the weights manually during outages or DR tests.

AWS Certified Solutions Architect Professional SAP-C02
Design for New Solutions
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