This object represents a DNS Domain Name
defined for the system. When this object is
set to a non empty string value, the domain name
part of the fully qualified name represented by
the 'sysName' object is updated by the value of
this object.
This object is a mandatory object for row creation.
An attempt to modify this object will fail with
an 'inconsistentValue' error, if the value of the
corresponding instance of 'cdcDNSDomainNameStatus'
object is active(1).