Answer: Multivalue routing policy

## Explanation The correct answer is **C. Multivalue routing policy**. ### Why Multivalue Routing Policy? **Multivalue routing policy** is specifically designed to return multiple values (up to 8) in response to DNS queries. It has several key features that make it ideal for this scenario: 1. **Multiple IP Addresses**: Returns multiple resource record sets (up to 8) in response to DNS queries. 2. **Health Checks**: Can be associated with health checks to return only healthy endpoints. 3. **Load Distribution**: Provides basic load balancing by returning different sets of IP addresses to different clients. ### Why Not the Other Options? - **A. Simple routing policy**: Returns only a single value per DNS query. It doesn't support returning multiple IP addresses. - **B. Latency routing policy**: Routes traffic based on the lowest network latency for the end user. It doesn't return multiple IP addresses. - **D. Geolocation routing policy**: Routes traffic based on the geographic location of the user. It doesn't return multiple IP addresses. ### Key Requirements Met: 1. **All healthy EC2 instances**: Multivalue routing can return up to 8 healthy endpoints. 2. **Seven EC2 instances**: This is within the 8-endpoint limit of multivalue routing. 3. **Health-based routing**: Multivalue routing supports health checks to ensure only healthy instances are returned. ### Alternative Consideration: For more than 8 instances or more advanced load balancing features, you would need to use an Application Load Balancer or Network Load Balancer in combination with Route 53. However, for exactly 7 instances, multivalue routing is the perfect fit.

Author: LeetQuiz Editorial Team