AWS Certified Solutions Architect - Professional
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A company operates a website on four Amazon EC2 instances behind an Application Load Balancer (ALB). When the ALB identifies that an EC2 instance is unresponsive, it triggers an Amazon CloudWatch alarm to enter the ALARM state. Currently, an operations team member manually replaces the failed EC2 instance. The company seeks a highly available solution that automates EC2 instance replacement to minimize downtime. What steps should a solutions architect implement to achieve this?
A
Remove the current ALB. Establish an Auto Scaling group configured to manage web application traffic. Associate a new launch template with the Auto Scaling group. Deploy a new ALB. Link the Auto Scaling group to the new ALB. Integrate the existing EC2 instances into the Auto Scaling group.
B
Set up an Auto Scaling group tailored to manage web application traffic. Attach a new launch template to the Auto Scaling group. Connect the Auto Scaling group to the existing ALB. Incorporate the existing EC2 instances into the Auto Scaling group.
C
Eliminate the existing ALB and EC2 instances. Create an Auto Scaling group designed to manage web application traffic. Attach a new launch template to the Auto Scaling group. Establish a new ALB. Attach the Auto Scaling group to the new ALB. Allow the Auto Scaling group to initiate the minimum number of EC2 instances.
D
Develop an Auto Scaling group to manage web application traffic. Attach a new launch template to the Auto Scaling group. Link the Auto Scaling group to the existing ALB. Allow the existing ALB to register the existing EC2 instances with the Auto Scaling group.