AWS Certified Cloud Practitioner (CLF-C02)Cloud Technology and ServicesHard
A media streaming company has customers in North America, Europe, and Asia. The company wants DNS queries to be answered with the IP address of the region that provides the fastest response time for each user, based on network conditions. Which Route 53 routing policy should the company use?
- AWeighted routing
- BSimple routing
- CLatency-based routing
- DGeolocation routing
Show answer & explanationAnswer & explanation
Correct answer: C. Latency-based routing
Latency-based routing directs users to the AWS Region that provides the lowest network latency for them, based on measured latency between users and AWS Regions, rather than fixed geographic boundaries.
Why the other options are wrong
- A. Weighted routing splits traffic by assigned percentages, not based on latency.
- B. Simple routing returns a single resource record with no consideration of performance or location.
- D. Geolocation routing routes based on the user's geographic location, not measured network performance.
Route 53 Latency-Based Routing
A Route 53 routing policy that routes traffic to the AWS Region that provides the lowest network latency for the end user, based on measured latency data.
- Uses latency measurements between users and AWS Regions
- Different from geolocation, which uses physical location
- Useful for improving performance for globally distributed applications
Memory trick: Latency routing: fastest road wins, not nearest map pin.