You just joined a startup IT company as an AWS DevOps engineer. Your company recently started to use the AWS platform, and its AWS account has used a Basic support plan. As the company has a limited budget for AWS resources, your manager asked you to design a solution to alert him when EC2 resources have a low utilization rate. You plan to use AWS CloudWatch Events to identify these resources with a lambda function as the target. The Lambda function can provide customized text and notify your manager. Which two options should you take in a combination to meet the need? (Select TWO.)

Answer options:

A.Upgrade the AWS account support plan to “Developer” to access all Trusted Advisor features.
B.Upgrade the AWS account support plan to “Business” to access all Trusted Advisor checks.
C.Upgrade the AWS account support plan to “Enterprise” to activate all cost-related features.
D.Create a new CloudWatch Events rule with the event source as Trusted Advisor. The event type is “Check Item Refresh Status”. Select the Lambda function as the target.
E.Create a CloudWatch rule with the event source as Trusted Advisor. The event type is “All Events”. Select the Lambda function as the target.

Correct Answer – B, D
In order to use the Cost Optimization Checks in Trusted Advisor, the support plan of Business and Enterprise should be used. Details refer to https://console.aws.amazon.com/support/plans/home#/.
Cost Optimization Checks in Trusted Advisor can capture the EC2 instances with low utilization. The user needs to create a CloudWatch Events Rule to check the Trusted Advisor events. A user guide on this approach can be found in https://docs.aws.amazon.com/awssupport/latest/user/cloudwatch-events-ta.html.
Option A is incorrect: Because the “Developer” support plan does not support the Cost Optimization feature in Trusted Advisor.
Option B is CORRECT: Because users can access all Trusted Advisor checks for a “Business” support plan.
Option C is incorrect: Because the “Enterprise” support plan starts at $15,000 per month, it is also unnecessary for this scenario.
Option D is CORRECT: Because it uses the correct event source and provides a notification with Lambda. Refer to the below example:
Option E is incorrect: Because the event type should not be “All Events” which will provide a lot of noise to the Lambda function. This case only needs to check Cost Optimization related events. So the event type of “Check Item Refresh Status” is enough.