Route 53 Quiz
A company hosts 5 web servers in AWS. They want to ensure that Route53 can be used to route user traffic to random web servers when they request for the underlying web application. Which routing policy should be used to fulfill this requirement?
A. Simple
B. Weighted
C. Multivalue Answer
D. Latency
C. Multivalue Answer
The AWS Documentation mentions the following to support this:
If you want to route traffic approximately randomly to multiple resources such as web servers, you can create one multivalue answer record for each resource and, optionally, associate an Amazon Route 53 health check with each record. For example, suppose you manage an HTTP web service with a dozen web servers that each have their own IP address, no one web server could handle all of the traffic, but if you create a dozen multivalue answer records, Amazon Route 53 responds to DNS queries with up to eight healthy records in response to each DNS query. Amazon Route 53 gives different answers to different DNS resolvers. If a web server becomes unavailable after a resolver caches a response, client software can try another IP address in the response.
For more information on this option, please visit the following URL:
https://aws.amazon.com/about-aws/whats-new/2017/06/amazon-route-53-announces-support-for-multivalue-answers-in-response-to-dns-queries/
Simple routing policy – Use for a single resource that performs a given function for your domain, for example, a web server that serves content for the example.com website.
Latency routing policy – Use when you have resources in multiple locations and you want to route traffic to the resource that provides the best latency.
Weighted routing policy – Use to route traffic to multiple resources in proportions that you specify.
Multivalue answer routing policy – Use when you want Route 53 to respond to DNS queries with up to eight healthy records selected at random.
