ns.bnnic.bn.NET.BN has no CNAME records.
Question and response
Question
dig ns.bnnic.bn.NET.BN. NS
Answer
The response has no answer records.
Authority
net.bn. 900 SOA ns.bnnic.bn.NET.BN. postmaster.bnnic.bn. 2014364068 21600 1800 2419200 900
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0