65. Route 53 Multivalue Answer
Multivalue answer routing lets you to configure Route 53 to return multiple values, such as IP addresses for web servers, in response to DNS queries. We can specify multiple values for almost any record, but multivalue answer routing also lets you to check the health of each resource, so Route 53 returns only values for healthy resources.
This is similar to simple routing however it allows you to put health checks on each record set.