You plan to use a CloudWatch Event rule and a Lambda function to provide customized notifications when the status of any check-in AWS Trusted Advisor is changed. For example, when Trusted Advisor reports an alert as the usage of EC2 On-Demand instances is over 80% of the limit, the CloudWatch Event rule is triggered and gets the team notified. However, when you try to create the Event rule in CloudWatch, you cannot find Trusted Advisor as the event source. Which of the following explanations is correct?

Answer options:

A.The AWS region should be selected as US East (N. Virginia) for Trusted Advisor to be configured in the AWS CloudWatch Event rule.
B.Trusted Advisor cannot be selected as the source unless the AWS support plan is upgraded to be Business or Enterprise.
C.Trusted Advisor is not a supported event source for the CloudWatch Event rule.
D.The IAM user does not have the Trusted Advisor read permission such as "trustedadvisor:DescribeChecks".

Correct Answer – A
Users can set up Amazon CloudWatch Events to monitor Trusted Advisor check results. For details, please refer to https://docs.aws.amazon.com/awssupport/latest/user/cloudwatch-events-ta.html.
Option A is CORRECT: Because, to configure Trusted Advisor as the event source, the AWS Region must be US East (N. Virginia). This explanation is correct.
Option B is incorrect: It is not required to upgrade the AWS support plan.
Option C is incorrect: Trusted Advisor is supported in CloudWatch Event rule.
Option D is incorrect: Because the IAM user does not need to have this permission when creating the rule in CloudWatch.