3.2.1 Abstract Data Model
This section describes a conceptual model of possible data organization that an implementation maintains to participate in this protocol. The described organization is provided to facilitate the explanation of how the protocol behaves. This document does not mandate that implementations adhere to this model as long as their external behavior is consistent with that described in this document.
The protocol requires that the DC MUST have a database or directory of accounts with Kerberos keys ([MS-KILE] section 3.1.1.2) available to it.
The server operating system MUST have the PAC.
The Netlogon abstract data model is specified in [MS-NRPC] section 3.2.1.