| step | query | auth | servers |
| 1 | 12.235.137.202.in-addr.arpa. | . | (k,h,g,l,j,b,i,f,d,m,c,a,e).root-servers.net. |
| 2 | 12.235.137.202.in-addr.arpa. | in-addr.arpa. | (c,b,a,d,e,f).in-addr-servers.arpa. |
| 3 | 12.235.137.202.in-addr.arpa. | 202.in-addr.arpa. | ns1.apnic.net. apnic1.dnsnode.net. ns3.apnic.net. ns4.apnic.net. tinnie.arin.net. dns1.telstra.net. sec1.authdns.ripe.net. |
| 4 | 12.235.137.202.in-addr.arpa. | 235.137.202.in-addr.arpa. | (ns1,ns2).rediffdns.com. |
We pick