AnonymousUserCapabilities are granted to users that aren't authenticated, as long as anonymous usage is enabled in the server configuration.

AnonymousUserCapabilitiesMask is the mask form of AnonymousUserCapabilities.

DefaultAuthenticatedUserCapabilities are granted to users that are authenticated and whose capabilities aren't explicitly provided (e.g.

DefaultAuthenticatedUserCapabilitiesMask is the mask form of DefaultAuthenticatedUserCapabilities.