AWS Certified Developer Associate · Free Practice Question Medium
Question 43
A company has implemented AWS CodePipeline to automate its release pipelines. The Development team is writing an AWS Lambda function that will send notifications for state changes of each of the actions in the stages.
Which steps must be taken to associate the Lambda function with the event source?
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A
Create a trigger that invokes the Lambda function from the Lambda console by selecting CodePipeline as the event source
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B
Create an event trigger and specify the Lambda function from the CodePipeline console
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C
Create an Amazon CloudWatch Events rule that uses CodePipeline as an event source
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D
Create an Amazon CloudWatch alarm that monitors status changes in CodePipeline and triggers the Lambda function
Reveal correct answer
Correct answer: C
Explanation
Amazon CloudWatch Events help you to respond to state changes in your AWS resources. When your resources change state, they automatically send events into an event stream. You can create rules that match selected events in the stream and route them to your AWS Lambda function to take action.
AWS CodePipeline can be configured as an event source in CloudWatch Events and can then send notifications using as service such as Amazon SNS.
Therefore, the best answer is to create an Amazon CloudWatch Events rule that uses CodePipeline as an event source.
CORRECT: "Create an Amazon CloudWatch Events rule that uses CodePipeline as an event source" is the correct answer.
INCORRECT: "Create a trigger that invokes the Lambda function from the Lambda console by selecting CodePipeline as the event source" is incorrect as CodePipeline cannot be configured as a trigger for Lambda.
INCORRECT: "Create an event trigger and specify the Lambda function from the CodePipeline console" is incorrect as CodePipeline cannot be configured as a trigger for Lambda.
INCORRECT: "Create an Amazon CloudWatch alarm that monitors status changes in CodePipeline and triggers the Lambda function" is incorrect as CloudWatch Events is used for monitoring state changes.
References:
https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/WhatIsCloudWatchEvents.html
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