SAP-C02 Question 194
Single answerA global e-commerce company uses Amazon Route 53 to manage its DNS. The company wants to improve the availability of its application by routing traffic to multiple web servers deployed in different AWS Regions. The company also requires that traffic be routed to the closest region based on the user's location for optimal latency. Which routing policy should you use to meet this requirement?
- A
Simple routing policy
- B
Latency routing policy
- C
Geolocation routing policy
- D
Multivalue answer routing policy
Show answer and explanation
Correct answer: B
Explanation
The latency routing policy in Amazon Route 53 is the most suitable option for this scenario since it routes traffic to the AWS Region with the lowest latency to the user. This ensures an optimal user experience by minimizing latency and improving application performance. While geolocation routing might seem similar, it routes based on geographic location, not latency. Other policies like simple routing and multivalue answer routing do not meet the requirement for latency-based optimization.
- A. Incorrect.
Simple routing policy does not consider user location or latency. It is used for basic routing to a single resource or when there’s no need for advanced traffic distribution.
- B. Correct.
Latency routing policy directs traffic to the region that provides the lowest latency to the user, fulfilling the requirement for optimal user experience based on proximity.
- C. Incorrect.
Geolocation routing policy routes traffic based on the user’s geographic location but does not specifically optimize for latency.
- D. Incorrect.
Multivalue answer routing policy provides multiple IP addresses in response to DNS queries for load balancing and availability, but it does not optimize for latency or location.