Your team has just moved from their Jenkins setup to using the AWS Code Pipeline service in AWS. They have a requirement to ensure triggers are in place during various stages in the pipeline to take actions based on those triggers. Which of the following can help you achieve this?

Answer options:

A.AWS Cloudwatch Events
B.AWS Config
C.AWS Cloudtrail
D.AWS Trusted Advisor

Answer – A
The AWS Documentation mentions the following.
Amazon CloudWatch Events is a web service that monitors your AWS resources and the applications you run on AWS. You can use Amazon CloudWatch Events to detect and react to changes in the state of a pipeline, stage, or action. Then, based on the rules you create, CloudWatch Events invokes one or more target actions when a pipeline, stage, or action enters the state you specify in a rule. Depending on the type of state change, you might want to send notifications, capture state information, take corrective action, initiate events, or take other actions.
Option B is incorrect since this service is used to monitor configuration changes.
Option C is incorrect since this service is used for API monitoring.
Option D is incorrect since this service is used to give recommendations.
For more information on Cloudwatch events and Code Pipeline, please refer to the below URL-
https://docs.aws.amazon.com/codepipeline/latest/userguide/detect-state-changes-cloudwatch-events.html