Which Route 53 configuration should a solutions architect use to provide the MOST high-performing experience?
Create an A record with a latency policy.
Create an A record with a geolocation policy.
Create a CNAME record with a failover policy.
Create a CNAME record with a geoproximity policy.
Explanations:
Using an A record with a latency policy directs traffic to the Region that provides the lowest latency for the user, ensuring the most responsive experience. This is ideal for high-performance applications as it adapts to varying network conditions.
A geolocation policy routes traffic based on the geographic location of the users, which may not guarantee the lowest latency. Users far from the selected Region may experience slower response times, reducing overall performance.
A CNAME record with a failover policy is designed for redundancy, directing traffic to a primary resource and a secondary one only if the primary fails. This setup does not optimize for performance, as it does not consider latency or the nearest Region for routing.
A CNAME record with a geoproximity policy directs traffic based on geographic proximity but does not specifically account for latency, potentially leading to suboptimal performance compared to the latency policy which focuses on minimizing response time.
To the best of my knowledge, the answer is:
Create an A record with a latency policy.