| step | query | auth | servers |
| 1 | 72.225.125.74.in-addr.arpa. | . | (f,l,b,h,i,c,m,d,k,j,e,a,g).root-servers.net. |
| 2 | 72.225.125.74.in-addr.arpa. | in-addr.arpa. | (e,a,f,c,b,d).in-addr-servers.arpa. |
| 3 | 72.225.125.74.in-addr.arpa. | 74.in-addr.arpa. | (v,w,t,y,u,x,z,r).arin.net. |
| 4 | 72.225.125.74.in-addr.arpa. | 125.74.in-addr.arpa. | (ns4,ns2,ns1,ns3).google.com. |
We pick