A SaaS runs active endpoints in us-east-1 and eu-west-1. European users should hit the EU stack — and if it becomes unhealthy, traffic must failover automatically. Which Route 53 configuration applies?
A.Simple routing with two A records
Simple routing ignores geography and health state.
B.Geolocation routing per continent + health checks and failover records
Correct. Geo-affinity plus health-checked failover.
C.Weighted routing 50/50
Weighted splits traffic regardless of user location.
D.Multivalue answer routing
Multivalue returns several IPs but doesn't enforce geo-affinity.
Why this answer
Geolocation routing sends users to the endpoint matching their location; Route 53 health checks mark the EU endpoint unhealthy and failover records shift its traffic to the US stack — the designed pattern for geo-affinity plus automatic failover.
Correct answer: B · Last reviewed 2026-10-26
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