| step | query | auth | servers |
| 1 | 21.113.140.193.in-addr.arpa. | . | (g,k,h,e,d,a,b,j,m,i,c,l,f).root-servers.net. |
| 2 | 21.113.140.193.in-addr.arpa. | in-addr.arpa. | (c,a,b,d,f,e).in-addr-servers.arpa. |
| 3 | 21.113.140.193.in-addr.arpa. | 193.in-addr.arpa. | pri.authdns.ripe.net. sns-pb.isc.org. sec1.apnic.net. sec3.apnic.net. ns3.nic.fr. tinnie.arin.net. |
| 4 | 21.113.140.193.in-addr.arpa. | 140.193.in-addr.arpa. | ns3.ulakbim.gov.tr. ns2.ulakbim.gov.tr. ns.ripe.net. ns1.ulakbim.gov.tr. |
| 5 | 21.113.140.193.in-addr.arpa. | 113.140.193.in-addr.arpa. | (ns1,ns2).osym.gov.tr. |
We pick