An administrator has been promoted to architect when trying to access one of the servers, the architect receives the error: "Authentication failure: Account is not allowed". Which of the following exp

Role-based ACLs restrict access by group membership or role, which would typically produce a 'insufficient privileges' or 'access denied' error tied to the role rather than an account-not-allowed message.

A partial multifactor authentication failure would produce errors related to a missing or invalid second factor, not a message indicating the account itself is prohibited.

Incomplete federated identity information causes authentication failures across trust boundaries between identity providers, not a local DACL-level account restriction on a specific server.

A DACL is controlled by the resource owner and contains Access Control Entries (ACEs) that grant or deny specific accounts access. When the architect's account was promoted, the DACL on the target server was not updated to include the new account, so the system evaluated the ACL and returned an explicit denial because no matching allow entry existed.