In a financial company, AWS CodePipeline has been used as the orchestration tool to manage pipelines. Some other AWS services are configured in the pipelines, including CodeCommit, CodeBuild, CodeDeploy, etc. There is a security policy that all artifacts generated during pipeline execution should be managed in a highly available and durable place. Which statements are correct about how AWS CodePipeline manages artifacts? (Select TWO.) 

Answer options:

A.User can select a custom S3 bucket as the artifact store while creating a new pipeline. 
B.Artifact can be stored in S3 or EC2 EBS.
C.User can configure a default S3 bucket as the artifact store in the same region and account as the pipeline.
D.When artifacts are saved in an S3 bucket, the bucket can belong to a different region.
E.When CodeBuild is used in the build stage, user can only configure input artifacts but not output artifacts.

Correct Answer – A, C
During pipeline creation, user can select a default S3 bucket or a custom S3 bucket as the place to store artifacts:
Option A is CORRECT: As above screenshot, user can choose an S3 bucket that exists in the same region.
Option B is incorrect: Because EC2 EBS is invalid.
Option C is CORRECT: Because by default, an S3 bucket is allocated as the place to store artifacts. For each pipeline, a dedicated folder is created in the S3 bucket.
Option D is incorrect: Because the bucket must belong to the same region. Refer to
https://docs.aws.amazon.com/codepipeline/latest/userguide/concepts.html
For details.
Option E is incorrect: Because for CodeBuild, user can configure both input artifacts and output artifacts: