ANS-C01 Question 127

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• 2

  D is correct The correct answer is D. Key DNS and Routing Principles: Latency-based routing optimizes for user experience by routing to the lowest-latency endpoint Health check-based failover ensures application availability Alias records provide direct integration with AWS resources Multiple records with latency routing allow intelligent global traffic management

• Chose D3

  Latency-Based Routing Policy: Latency-based routing is suitable for directing traffic to the AWS Region that provides the lowest latency or response time for users. This helps ensure that users are directed to the Region that can deliver the best performance. ALB Configuration: For each ALB, create an A record with a latency-based routing policy. This allows Route 53 to route traffic based on the latency observed from users' locations to the ALBs. Evaluate Target Health: Setting "Evaluate Target Health" to Yes ensures that Route 53 considers the health of the targets (ALBs) when making routing decisions. If the ALB in the initially intended Region becomes unavailable, Route 53 will automatically route traffic to the next healthiest Region.

• Chose D3

  For both latency alias records, you set the value of Evaluate Target Health to Yes. This causes Route 53 to determine whether there are any healthy resources in a region before trying to route traffic there. https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-complex-configs.html