A company has several departments, and its AWS specialist created an AWS organization in its master account that is owned by the operation team. Then he invited other departments such as Development, QA, and HR to join the organization. After all the invitations were accepted, the payer account and linked accounts have been set up successfully. What are some of the features of consolidated billing? (Select TWO)

Answer options:

A.It becomes more secure as only the payer account can see the usage and charges across all the accounts. Owners of the linked accounts cannot see their usage and charges.
B.The usage across all accounts can share the volume pricing discounts and Reserved Instance discounts.
C.The consolidated billing feature does not bring additional costs.
D.AWS Organizations automatically creates a root user and an IAM role for all linked accounts so that the master account can access and administer the member accounts.

Correct Answer B, C
The consolidated billing feature in AWS Organizations is used to consolidate billing and payment for multiple AWS accounts. It means that in the organization, the master pays the charges of all the member accounts.
Option A is incorrect: Because although the owners of the linked accounts aren`t charged, they can still see their usage and charges by going to their AWS Bills pages.
Option B is CORRECT: Because the usage is combined in AWS Organization so that the discount is possible.
Option C is CORRECT: This is clearly stated in https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/consolidated-billing.html.
Option D is incorrect: Because member accounts that you invited to join your organization did not automatically get an administrator role created. An OrganizationAccountAccessRole is needed at first in linked accounts. The related document is in https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_accounts_access.html#orgs_manage_accounts_create-cross-account-role.