| step | query | auth | servers |
| 1 | 135.247.218.207.in-addr.arpa. | . | (b,f,h,i,c,k,a,j,m,e,l,g,d).root-servers.net. |
| 2 | 135.247.218.207.in-addr.arpa. | in-addr.arpa. | (e,b,c,d,f,a).in-addr-servers.arpa. |
| 3 | 135.247.218.207.in-addr.arpa. | 207.in-addr.arpa. | (z,v,y,x,r,u,t,w).arin.net. |
| 4 | 135.247.218.207.in-addr.arpa. | 247.218.207.in-addr.arpa. | (ns3,ns4).arpa.networklayer.com. |
We pick