AWS Certified SysOps Administrator – Associate — Question 54

A company is rolling out a new version of its website. Management wants to deploy the new website in a limited rollout to 20% of the company’s customers. The company uses Amazon Route 53 for its website’s DNS solution.

Which configuration will meet these requirements?

Answer options

• A. Create a failover routing policy. Within the policy, configure 80% of the website traffic to be sent to the original resource. Configure the remaining 20% of traffic as the failover record that points to the new resource.
• B. Create a multivalue answer routing policy. Within the policy, create 4 records with the name and IP address of the original resource. Configure 1 record with the name and IP address of the new resource.
• C. Create a latency-based routing policy. Within the policy, configure a record pointing to the original resource with a weight of 80. Configure a record pointing to the new resource with a weight of 20.
• D. Create a weighted routing policy. Within the policy, configure a weight of 80 for the record pointing to the original resource. Configure a weight of 20 for the record pointing to the new resource.

Correct answer: D

Explanation

The correct answer is D because a weighted routing policy allows you to distribute traffic based on specified weights, which perfectly matches the requirement of directing 20% of traffic to the new website. Option A is incorrect as failover routing does not distribute traffic but rather sends traffic to a backup resource if the primary fails. Option B is wrong because a multivalue answer routing policy does not allow for controlled traffic percentages in this manner. Option C is not suitable as latency-based routing focuses on response times rather than traffic distribution percentages.