| step | query | auth | servers |
| 1 | 129.224.125.74.in-addr.arpa. | . | (h,c,d,j,g,k,b,m,a,e,l,i,f).root-servers.net. |
| 2 | 129.224.125.74.in-addr.arpa. | in-addr.arpa. | (c,b,e,a,d,f).in-addr-servers.arpa. |
| 3 | 129.224.125.74.in-addr.arpa. | 74.in-addr.arpa. | (y,x,r,t,u,w,z,v).arin.net. |
| 4 | 129.224.125.74.in-addr.arpa. | 125.74.in-addr.arpa. | (ns1,ns2,ns3,ns4).google.com. |
We pick