AWS Certified DevOps Engineer - Professional DOP-C02 — Topic 1 Question 346

Question

A DevOps team supports an application that runs on a large number of Amazon EC2 instances in an Auto Scaling group. The DevOps team uses AWS CloudFormation to deploy the EC2 instances. The application recently experienced an issue. A single instance returned errors to a large percentage of requests. The EC2 instance responded as healthy to both Amazon EC2 and Elastic Load Balancing health checks. The DevOps team collects application logs in Amazon CloudWatch by using the embedded metric format. The DevOps team needs to receive an alert if any EC2 instance is responsible for more than half of all errors. Which combination of steps will meet these requirements with the LEAST operational overhead? (Choose two.)

Accepted Answer

Correct answer: A, D. The correct answer is A, D. Option A: Create a CloudWatch Contributor Insights rule that groups logs from the CloudWatch application logs based on instance ID and errors. Option D: Create a CloudWatch alarm that uses the INSIGHT_RULE_METRIC function to determine whether a specific instance is responsible for more than half of all errors reported by EC2 instances. Configure the CloudWatch alarm t... Amazon EC2 provides resizable virtual servers when you need full control of the operating system. Amazon SNS is a managed pub/sub service for fan-out notifications to many subscribers. Amazon CloudWatch collects metrics, logs and alarms to monitor and react to operational health.

AWS Certified DevOps Engineer - Professional DOP-C02 — Question 346