ANS-C01 Question 41
Select 2Your company has deployed a web application across multiple AWS regions to ensure high availability and low latency for global users. You are tasked with configuring Amazon Route 53 to direct users to the closest region based on their geographic location while providing a backup failover region in case the primary region becomes unavailable. Which combination of Route 53 features should you use to achieve this?
- A
Geolocation routing policy
- B
Failover routing policy
- C
Weighted routing policy
- D
Latency routing policy
- E
Route 53 Resolver
Show answer and explanation
Correct answers: A, B
Explanation
To achieve the requirement of directing users to the closest region based on their geographic location and providing a backup failover region, you need to combine the Geolocation routing policy for proximity-based traffic direction and the Failover routing policy to handle failover scenarios. Other routing policies like Weighted and Latency do not meet both requirements, and Route 53 Resolver is not relevant in this context.
- A. Correct.
Geolocation routing policy allows you to route traffic based on the geographic location of your users, which is ideal for directing users to the closest region.
- B. Correct.
Failover routing policy is designed to provide a backup destination if the primary resource becomes unavailable, which is critical for ensuring high availability.
- C. Incorrect.
Weighted routing policy is used to distribute traffic across multiple resources based on assigned weights, but it does not consider geographic location or provide failover capabilities.
- D. Incorrect.
Latency routing policy routes traffic to the region with the lowest latency, but it does not offer backup failover capabilities when a resource becomes unavailable.
- E. Incorrect.
Route 53 Resolver is a DNS service for hybrid environments and is not applicable for configuring traffic routing policies for global web applications.