AWS Certified SysOps Administrator – Associate — Question 255

A company has migrated its legacy on-premises web application to an Amazon EC2 instance. The web application requires a single static public IP address to accept traffic and process requests. End users must be able to reach the web application through the example.com domain. A SysOps administrator must implement a solution that maintains the web application with the least amount of effort.

Which combination of actions will meet these requirements? (Choose two.)

Answer options

• A. Configure an Application Load Balancer (ALB). Add the EC2 instance to a target group that is associated with the ALB.
• B. Create an Amazon Route 53 A record for the associated EC2 IP address.
• C. Create an Amazon Route 53 CNAME record for the associated EC2 IP address.
• D. Create an Elastic IP address, and associate it with the EC2 instance.
• E. Create an Auto Scaling group with a minimum capacity of 1 and a maximum capacity of 2.

Correct answer: B, D

Explanation

The correct actions are to create an Amazon Route 53 A record for the EC2 instance’s IP address to map the domain name and to create an Elastic IP address to ensure the instance has a static public IP. The other options do not provide a static IP or are unnecessary for the requirements, such as using an ALB or CNAME record, which are not needed for a single instance setup.