AWS Certified Solutions Architect – Associate (SAA-C02) — Question 378

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

To deliver the highest-performing experience, Route 53 latency routing is the optimal choice because it directs user requests to the AWS Region that offers the lowest round-trip network latency. Geolocation and geoproximity routing base their decisions on physical location rather than actual network performance measurements. Additionally, alias A records are preferred over CNAME records at the zone apex and offer better integration with AWS resources like an Application Load Balancer.