| step | query | auth | servers |
| 1 | 135.224.125.74.in-addr.arpa. | . | (k,g,i,l,j,m,c,b,h,a,f,e,d).root-servers.net. |
| 2 | 135.224.125.74.in-addr.arpa. | in-addr.arpa. | (e,f,d,c,b,a).in-addr-servers.arpa. |
| 3 | 135.224.125.74.in-addr.arpa. | 74.in-addr.arpa. | (r,v,y,t,u,x,w,z).arin.net. |
| 4 | 135.224.125.74.in-addr.arpa. | 125.74.in-addr.arpa. | (ns2,ns3,ns1,ns4).google.com. |
We pick