| step | query | auth | servers |
| 1 | 160.137.180.213.in-addr.arpa. | . | (c,f,l,k,g,e,j,a,i,m,d,h,b).root-servers.net. |
| 2 | 160.137.180.213.in-addr.arpa. | in-addr.arpa. | (f,a,d,e,c,b).in-addr-servers.arpa. |
| 3 | 160.137.180.213.in-addr.arpa. | 213.in-addr.arpa. | pri.authdns.ripe.net. sns-pb.isc.org. sec1.apnic.net. sec3.apnic.net. ns3.nic.fr. tinnie.arin.net. |
| 4 | 160.137.180.213.in-addr.arpa. | 137.180.213.in-addr.arpa. | (dns1,dns2,dns3).onet.pl. |
We pick