| step | query | auth | servers |
| 1 | 105.67.194.173.in-addr.arpa. | . | (a,e,m,l,i,j,g,k,h,f,c,d,b).root-servers.net. |
| 2 | 105.67.194.173.in-addr.arpa. | in-addr.arpa. | (b,e,f,a,d,c).in-addr-servers.arpa. |
| 3 | 105.67.194.173.in-addr.arpa. | 173.in-addr.arpa. | (y,v,z,t,x,w,r,u).arin.net. |
| 4 | 105.67.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns4,ns1,ns2,ns3).google.com. |
We pick