The ObjectTypes element contains the full object class hierarchy of the directory object that represents the naming context for this domain.

 <xs:element name="ObjectTypes" nillable="true" type="sera:ArrayOfstring" />

The ObjectTypes element is populated from the domainDNS!objectClass multivalued attribute on the domain NC root object ([MS-ADTS] section The values in the array are ordered in the same sequence as values in the objectClass attribute ([MS-ADTS] section If the domainDNS!objectClass attribute is not present or cannot be read due to the client lacking access rights to read the attribute, the server returns a SOAP fault described in section