Your team has developed a web application that will run on an EC2 Instance. There is a deployment requirement wherein if the primary application fails. The requests need to be routed to a static website. Which of the following can help you achieve this?

Answer options:

A.A Classic Load balancer placed in front of the EC2 Instances.
B.An Application Load balancer placed in front of the EC2 Instances.
C.A health check in Route 53.
D.The swap URL feature in Elastic Beanstalk.

Answer – C
The AWS Documentation mentions the following.
Amazon Route 53 health checks monitor the health and performance of your web applications, web servers, and other resources. Each health check that you create can monitor one of the following.
The health of a specified resource, such as a web server
The status of other health checks
The status of an Amazon CloudWatch alarm
Options A and B are incorrect since the Load balancers are used to distribute traffic and not divert traffic.
Option D is incorrect since the application is not being hosted on Elastic Beanstalk.
For more information on DNS failover, please refer to the below URL-
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover.html