| step | query | auth | servers |
| 1 | 105.8.119.203.in-addr.arpa. | . | (c,f,i,k,h,b,e,l,j,m,d,a,g).root-servers.net. |
| 2 | 105.8.119.203.in-addr.arpa. | in-addr.arpa. | (b,d,e,f,c,a).in-addr-servers.arpa. |
| 3 | 105.8.119.203.in-addr.arpa. | 203.in-addr.arpa. | sec1.authdns.ripe.net. apnic1.dnsnode.net. dns1.telstra.net. ns4.apnic.net. ns1.apnic.net. tinnie.arin.net. ns3.apnic.net. |
| 4 | 105.8.119.203.in-addr.arpa. | 8.119.203.in-addr.arpa. | (b,d,e,c,f).dns-servers.vn. |
We pick