AWS Certified DevOps Engineer - Professional DOP-C02 — Topic 1 Question 157

Question

A DevOps engineer notices that all Amazon EC2 instances running behind an Application Load Balancer in an Auto Scaling group are failing to respond to user requests. The EC2 instances are also failing target group HTTP health checks. Upon inspection, the engineer notices the application process was not running in any EC2 instances. There are a significant number of out of memory messages in the system logs. The engineer needs to improve the resilience of the application to cope with a potential application memory leak. Monitoring and notifications should be enabled to alert when there is an issue. Which combination of actions will meet these requirements? (Choose two.)

Accepted Answer

Correct answer: A, E. The correct answer is A, E. Option A: Change the Auto Scaling configuration to replace the instances when they fail the load balancer's health checks. Option E: Use the Amazon CloudWatch agent to collect the memory utilization of the EC2 instances in the Auto Scaling group. Create an alarm when the memory utilization is high and associate an Amazon SNS topic to receive a noti... Auto Scaling adjusts capacity automatically to match demand, improving availability and cost efficiency. Amazon EC2 provides resizable virtual servers when you need full control of the operating system. A load balancer distributes traffic across targets in multiple AZs for availability and scale. By spanning multiple Availability Zones / adding redundancy, this option provides the high availability and resilience required.

AWS Certified DevOps Engineer - Professional DOP-C02 — Question 157