| step | query | auth | servers |
| 1 | 103.73.194.173.in-addr.arpa. | . | (c,d,a,j,b,m,k,i,h,g,l,e,f).root-servers.net. |
| 2 | 103.73.194.173.in-addr.arpa. | in-addr.arpa. | (d,c,a,e,b,f).in-addr-servers.arpa. |
| 3 | 103.73.194.173.in-addr.arpa. | 173.in-addr.arpa. | (y,v,t,z,r,w,u,x).arin.net. |
| 4 | 103.73.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns3,ns1,ns2,ns4).google.com. |
We pick