than that permitted on the transmission channel. @type trunc: L{int} @param maxSize: The requestor's UDP payload size is the number of octets of the largest UDP payload that can be reassembled and delivered in the requestor's network stack. @type maxSize: L{int} @param authenticData: A flag indicating in a response that all the data included in the answer and authority portion of the response has been authenticated by the server according to the policies of that server. See U{RFC2535 section-6.1}. @type authenticData: L{int} @param checkingDisabled: A flag indicating in a query that pending (non-authenticated) data is acceptable to the resolver sending the query. See U{RFC2535 section-6.1}. @type authenticData: L{int}