You work as a DevOps engineer for a company that focuses on Artificial Intelligence services. Several Lambda functions are under development as part of the AI products. You are in charge of the Lambda development via AWS CodeDeploy. And every week, there is a new build waiting to be deployed online. For CodeDeploy, there are several steps:

Answer options:

A.4-3-1-2
B.3-1-4-2
C.1-2-3-4
D.3-4-1-2

Correct Answer – D
For the details on how to use CodeDeploy to work with AWS Lambda, refer to https://docs.aws.amazon.com/codedeploy/latest/userguide/deployment-steps.html#deployment-steps-lambda:
To use AWS CodeDeploy, the first step should be creating an application:
Options A and C are eliminated. The next step should be creating a deployment group.
That is a step to specify configurations such as name, service role, deployment settings, etc.
Therefore the correct order should be 3-4-1-2 which is also the only option left.
Option A~C are incorrect: Refer to the above explanations.
Option D is CORRECT: Refer to the above explanations.