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Question 355 - SOA-C02 discussion

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A company has an application that runs behind an Application Load Balancer (ALB) in the us-west-2 Region. An Amazon Route 53 record set contains an alias record for app.anycompany.com that references the ALB in us-west-2 and uses a simple routing policy. The application is experiencing an increase in users from other locations in the world. These users are experiencing high latency.

Most of the new users are close to the ap-southeast-2 Region. The company deploys a copy of the application to ap-southeast-2. A SysOps administrator must implement a solution that automatically routes requests to the lowest latency endpoint for users without changing the URL.

Which solution will meet these requirements?

A.
Add a new value to the existing alias record for app.anycompany.com with the DNS name of the new ALB in ap-southeast-2.
Answers
A.
Add a new value to the existing alias record for app.anycompany.com with the DNS name of the new ALB in ap-southeast-2.
B.
Change the existing alias record to use a geolocation routing policy. Create two geolocation records, one record that references each ALSelect the location that is closest to each Region.
Answers
B.
Change the existing alias record to use a geolocation routing policy. Create two geolocation records, one record that references each ALSelect the location that is closest to each Region.
C.
Change the existing alias record to use a latency routing policy. Create two latency records, one record that references each ALB.
Answers
C.
Change the existing alias record to use a latency routing policy. Create two latency records, one record that references each ALB.
D.
Change the existing alias record to use a multivalue routing policy Add the DNS name of each ALB to the record.
Answers
D.
Change the existing alias record to use a multivalue routing policy Add the DNS name of each ALB to the record.
Suggested answer: C

Explanation:

To optimize the routing of requests to the application for users in different geographic locations, use Amazon Route 53's latency-based routing:

Latency Routing Policy: Modify the Route 53 DNS settings for app.anycompany.com by changing the routing policy to latency. This policy routes user requests to the server that has the lowest latency relative to the user's location.

Configure Latency Records: Create latency records for each ALB---one for the ALB in us-west-2 and another for the new ALB in ap-southeast-2. Route 53 will automatically direct traffic to the endpoint that provides the lowest latency connection to the user.

Seamless User Experience: By using latency routing, the URL remains the same (app.anycompany.com), but the backend service location varies based on which endpoint is likely to respond the fastest. This setup provides a seamless experience for users, reducing latency without requiring any changes to how they access the application.

This method leverages Route 53's advanced DNS capabilities to ensure optimal performance and user experience by dynamically routing traffic based on geographic latency considerations.

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asked 16/09/2024
MIGUEL FERNANDEZ
36 questions
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