AWS Certified Solutions Architect – Associate (SAA-C03) — Question 653

A company is deploying an application in three AWS Regions using an Application Load Balancer. Amazon Route 53 will be used to distribute traffic between these Regions.

Which Route 53 configuration should a solutions architect use to provide the MOST high-performing experience?

Answer options

• A. Create an A record with a latency policy.
• B. Create an A record with a geolocation policy.
• C. Create a CNAME record with a failover policy.
• D. Create a CNAME record with a geoproximity policy.

Correct answer: A

Explanation

A Route 53 latency routing policy optimizes performance by directing user traffic to the AWS Region that offers the lowest network latency. Geolocation and geoproximity routing policies route traffic based on geographic location rather than actual network speed, which may not always yield the highest performance. Furthermore, using an A record (with an Alias) is the standard best practice for routing traffic to an Application Load Balancer, particularly at the zone apex.