Question

A SysOps administrator manages a Route 53 public hosted zone for an internal API that runs on eight EC2 instances behind no load balancer (clients connect directly by DNS name). The team wants DNS to return multiple healthy instance IP addresses per query and to automatically stop returning the IP of any instance that fails a health check. The solution must not require provisioning a load balancer. Which Route 53 configuration meets these requirements?

Accepted Answer

Create eight separate A records with the same name using multivalue answer routing, each with its own health check referencing one instance.

Answer

Create a single simple routing record of type A containing all eight instance IPs, and associate a health check with the record set.

Answer

Create eight A records with the same name using weighted routing, assigning each an equal weight and a health check.

Answer

Create a single A record using failover routing with all eight IPs listed as the primary and a health check on the record.