A company that operates a web application on premises is preparing to launch a newer version of the application on AWS. The company needs to route requests to either the AWS-hosted or the on-premises-hosted application based on the URL query string. The on-premises application is not available from the internet, and a VPN connection is established between Amazon VPC and the company’s data center. The company wants to use an Application Load Balancer (ALB) for this launch.
Which solution meets these requirements?
A . Use two ALBs: one for on premises and one for the AWS resource. Add hosts to each target group of each AL
B . Route with Amazon Route 53 based on the URL query string.
C . Use two ALBs: one for on premises and one for the AWS resource. Add hosts to the target group of each AL
D . Create a software router on an EC2 instance based on the URL query string.
E . Use one ALB with two target groups: one for the AWS resource and one for on premises. Add hosts to each target group of the AL
F . Configure listener rules based on the URL query string.
G . Use one ALB with two AWS Auto Scaling groups: one for the AWS resource and one for on premises. Add hosts to each Auto Scaling group. Route with Amazon Route 53 based on the URL query string.
Answer: A
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