AWS Certified SysOps Administrator – Associate — Question 118

A global gaming company is preparing to launch a new game on AWS. The game runs in multiple AWS Regions on a fleet of Amazon EC2 instances. The instances are in an Auto Scaling group behind an Application Load Balancer (ALB) in each Region. The company plans to use Amazon Route 53 for DNS services. The DNS configuration must direct users to the Region that is closest to them and must provide automated failover.

Which combination of steps should a SysOps administrator take to configure Route 53 to meet these requirements? (Choose two.)

Answer options

• A. Create Amazon CloudWatch alarms that monitor the health of the ALB in each Region. Configure Route 53 DNS failover by using a health check that monitors the alarms.
• B. Create Amazon CloudWatch alarms that monitor the health of the EC2 instances in each Region. Configure Route 53 DNS failover by using a health check that monitors the alarms.
• C. Configure Route 53 DNS failover by using a health check that monitors the private IP address of an EC2 instance in each Region.
• D. Configure Route 53 geoproximity routing. Specify the Regions that are used for the infrastructure.
• E. Configure Route 53 simple routing. Specify the continent, country, and state or province that are used for the infrastructure.

Correct answer: A, D

Explanation

The correct answer is A and D. Option A is correct because monitoring the health of the ALB ensures that Route 53 can perform failover if the load balancer becomes unhealthy. Option D is also correct as geoproximity routing allows users to be directed to the closest Region. Options B and C are incorrect as they do not monitor the ALB, which is crucial for ensuring load balancing functionality; options E does not provide the necessary routing granularity or failover capabilities.