You are working for a large company. You have set up the AWS consolidated billing with a Management account and several member accounts. However, the management account’s cost allocation report does not use the AWS generated cost allocation tags to organize the resource costs.

Answer options:

A.Use the Management account to log in to the AWS console and activate the user-defined tags in the Billing and Cost Management console.
B.For both, the Management account and member accounts, use AWS CLI to activate AWS generated tags for Billing and Cost Management.
C.Log in to the AWS console of both Management account and member accounts, activate the user-defined tags in Billing -> Cost Explorer -> Cost Allocation Tags.
D.Log in to the AWS console using the Management account and activate the AWS-generated tags in the Billing and Cost Management console.

Answer - D
AWS provides two types of cost allocation tags: AWS-generated tags and user-defined tags. AWS defines, creates, and applies the AWS-generated tags for you, and users define, create, and apply user-defined tags.
To use the AWS-generated tags, a management account owner must activate them in the Billing and Cost Management console. When a management account owner activates the tag, the tag is also activated for all member accounts.
Option A is incorrect: Because AWS-generated tags should be activated.
Option B is incorrect: Because AWS-generated tags can only be activated in the management account.
Option C is incorrect: Same reason as Option
B. Also, it is not user-defined tags.
Option D is CORRECT: Because the tag can be activated in “Billing -> Cost Management.
References:
https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/aws-tags.html