| step | query | auth | servers |
| 1 | 73.37.194.173.in-addr.arpa. | . | (i,m,b,k,j,h,c,g,e,d,f,a,l).root-servers.net. |
| 2 | 73.37.194.173.in-addr.arpa. | in-addr.arpa. | (f,d,e,b,a,c).in-addr-servers.arpa. |
| 3 | 73.37.194.173.in-addr.arpa. | 173.in-addr.arpa. | (w,y,x,r,t,u,v,z).arin.net. |
| 4 | 73.37.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns2,ns4,ns1,ns3).google.com. |
We pick