| step | query | auth | servers |
| 1 | 3.192.12.192.in-addr.arpa. | . | (j,a,b,e,l,m,k,c,g,f,h,i,d).root-servers.net. |
| 2 | 3.192.12.192.in-addr.arpa. | in-addr.arpa. | (b,c,f,a,d,e).in-addr-servers.arpa. |
| 3 | 3.192.12.192.in-addr.arpa. | 192.in-addr.arpa. | (t,z,v,x,r,u,w,y).arin.net. |
| 4 | 3.192.12.192.in-addr.arpa. | 192.12.192.in-addr.arpa. | itgeo.mix-it.net. itgeo.tix.it. nameserver.cnr.it. dns.nic.it. |
We pick