| step | query | auth | servers |
| 1 | 131.248.65.111.in-addr.arpa. | . | (k,g,e,b,d,j,a,m,h,i,c,l,f).root-servers.net. |
| 2 | 131.248.65.111.in-addr.arpa. | in-addr.arpa. | (c,d,e,f,b,a).in-addr-servers.arpa. |
| 3 | 131.248.65.111.in-addr.arpa. | 111.in-addr.arpa. | sec1.authdns.ripe.net. ns4.apnic.net. ns2.lacnic.net. apnic1.dnsnode.net. tinnie.arin.net. ns3.apnic.net. ns1.apnic.net. |
| 4 | 131.248.65.111.in-addr.arpa. | 248.65.111.in-addr.arpa. | (ns2,ns1).gate.vn. |
We pick