You currently have an application hosted on an ELB with EC2 Instances running in AWS. Route53 is used as the DNS Service. You are planning on deploying a new version of the application which will have a new ELB with EC2 Instances. But you want this transition to be phased out so that a percentage of users get access to the new application. Once the new application is confirmed as working that the entire user base can be switched over. How would you configure Route53 in this case?

Answer options:

A.Configure Route53 with the Weighted routing policy
B.Configure Route53 with the Failover routing policy
C.Configure Route53 with the Latency routing policy
D.Configure Route53 with the Simple routing policy

Answer – A
The AWS documentation mentions the following
Weighted routing lets you associate multiple resources with a single domain name (example.com) or subdomain name (acme.example.com) and choose how much traffic is routed to each resource. This can be useful for a variety of purposes, including load balancing and testing new versions of software
For more information on the routing policy, please refer to the below URL:
http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html