Question and response
Question
dig commercial.pccw.com. NS
Answer
commercial.pccw.com. 10800 NS dns4.pccw.com.
commercial.pccw.com. 10800 NS dns3.pccw.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0