You work in the Site Reliable Engineering team as a DevOps engineer. Your team is maintaining several pipelines in the AWS CodePipeline service. However, you have found no notifications to your team even if a certain pipeline has failed. You want to set up a feature so that your on-call team can get an email and an SMS when the whole pipeline or certain stage inside the pipeline changes the state to “FAILED”. Which combinations of services should you use to implement this? (Select TWO.)

Answer options:

A.AWS Simple Notification Service
B.AWS CloudTrail
C.AWS CloudWatch Events
D.AWS Simple Queue Service
E.AWS CloudWatch Alarms

Correct Answer – A, C
Amazon CloudWatch Events can be used to detect and react to changes in the state of a pipeline, stage, or action. Then, based on rules, CloudWatch Events invokes one or more target actions when a pipeline, stage, or action enters the specified state.
An SNS topic can be configured as a target for the above CloudWatch Events rule. Then users can create subscriptions of Email or SMS to this new topic so that the on-call team will be notified when the state changes to unsuccessful.
Option A and C are CORRECT: For CodePipeline, CloudWatch Events rule supports the state change of pipeline, stage or action:
The relevant CodePipeline documentation can be found in https://docs.aws.amazon.com/codepipeline/latest/userguide/detect-state-changes-cloudwatch-events.html.
Options B, D, E are incorrect: Refer to the above explanations.