What should the Administrator do to ensure that this S3 bucket can be referenced by all the service templates?
Include the S3 bucket as a mapping in each template.
Add the S3 bucket as a resource in each template.
Create the S3 bucket in its own template and export it.
Generate the S3 bucket using StackSets.
Explanations:
Including the S3 bucket as a mapping in each template would not allow the services to reference it as a resource, and mappings are used for static values, not for live resources.
Adding the S3 bucket as a resource in each template would create multiple instances of the same S3 bucket, leading to resource duplication, which is undesirable.
Creating the S3 bucket in its own template and exporting it allows the bucket to be referenced by other templates through theImportValuefunction, ensuring all templates can access the shared bucket.
StackSets are used for deploying CloudFormation stacks across multiple accounts and regions, not for referencing shared resources like an S3 bucket in different templates.