| step | query | auth | servers |
| 1 | 145.224.125.74.in-addr.arpa. | . | (l,e,d,k,b,h,f,a,g,j,m,i,c).root-servers.net. |
| 2 | 145.224.125.74.in-addr.arpa. | in-addr.arpa. | (a,c,b,f,e,d).in-addr-servers.arpa. |
| 3 | 145.224.125.74.in-addr.arpa. | 74.in-addr.arpa. | (t,u,v,z,y,w,r,x).arin.net. |
| 4 | 145.224.125.74.in-addr.arpa. | 125.74.in-addr.arpa. | (ns2,ns1,ns3,ns4).google.com. |
We pick