| step | query | auth | servers |
| 1 | 102.45.125.74.in-addr.arpa. | . | (l,e,d,k,h,j,m,i,g,c,b,f,a).root-servers.net. |
| 2 | 102.45.125.74.in-addr.arpa. | in-addr.arpa. | (f,d,a,b,e,c).in-addr-servers.arpa. |
| 3 | 102.45.125.74.in-addr.arpa. | 74.in-addr.arpa. | (v,r,z,u,t,x,w,y).arin.net. |
| 4 | 102.45.125.74.in-addr.arpa. | 125.74.in-addr.arpa. | (ns1,ns2,ns4,ns3).google.com. |
We pick