Route 53 routing policies decide which answer DNS hands back, and the architect exam tests them by scenario. Match the goal to the policy and you’re set.
The policies at a glance
Simple — one record. Weighted — split by percentage for A/B testing or gradual rollouts. Latency-based — fastest Region for each user. Failover — active/passive with health checks. Geolocation — route by user’s location (for content or compliance). Geoproximity — route by distance with bias.
Test yourself
You want to send 10% of users to a new version of your site and 90% to the current one. Which routing policy?
- Latency-based
- Weighted
- Failover
- Geolocation
👉 Click to reveal the answer & explanation
Correct answer: B. Weighted routing splits traffic by percentage, perfect for canary releases and A/B tests. Latency (A) optimizes speed; failover (C) is active/passive DR; geolocation (D) routes by user location.
Related topics
Amazon Route 53 · Amazon CloudFront · Global Accelerator
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