| step | query | auth | servers |
| 1 | 138.70.194.173.in-addr.arpa. | . | (e,h,a,b,j,d,m,c,g,i,f,l,k).root-servers.net. |
| 2 | 138.70.194.173.in-addr.arpa. | in-addr.arpa. | (f,e,c,a,b,d).in-addr-servers.arpa. |
| 3 | 138.70.194.173.in-addr.arpa. | 173.in-addr.arpa. | (y,u,w,r,x,z,v,t).arin.net. |
| 4 | 138.70.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns3,ns4,ns2,ns1).google.com. |
We pick