ANS-C01 Question 10
Select 2Your company has deployed a multi-region application on AWS that uses Amazon Route 53 for DNS routing and Amazon CloudFront for content delivery. The application must meet the following requirements:
- Automatically route users to the lowest latency backend based on their location.
- Provide high availability by routing traffic to another region in case of failure.
Which Route 53 routing policy or combination of policies should you use to meet these requirements?
- A
Latency-based routing
- B
Geolocation routing
- C
Failover routing
- D
Weighted routing
- E
Simple routing
Show answer and explanation
Correct answers: A, C
Explanation
To meet the requirements, you need a combination of latency-based routing for directing users to the lowest latency backend and failover routing to ensure traffic is routed to a secondary region in case of a failure. Latency-based routing ensures an optimal user experience, while failover routing ensures high availability.
- A. Correct.
Latency-based routing is correct because it allows Route 53 to evaluate the latency between the user's location and the available AWS regions, ensuring users are routed to the backend with the lowest latency.
- B. Incorrect.
Geolocation routing is incorrect because it routes users based on their geographic location, not latency, and does not provide fallback capabilities in case of failure.
- C. Correct.
Failover routing is correct because it allows you to configure Route 53 to route traffic to a secondary region in case the primary region becomes unavailable, ensuring high availability.
- D. Incorrect.
Weighted routing is incorrect because it is used to control traffic distribution across multiple resources based on assigned weights, not for latency-based or failover purposes.
- E. Incorrect.
Simple routing is incorrect because it only routes traffic to a single resource and does not meet the requirements for latency optimization or high availability.