| step | query | auth | servers |
| 1 | 100.164.172.in-addr.arpa. | . | (k,l,j,a,i,h,m,g,b,f,c,d,e).root-servers.net. |
| 2 | 100.164.172.in-addr.arpa. | in-addr.arpa. | (e,b,c,d,f,a).in-addr-servers.arpa. |
| 3 | 100.164.172.in-addr.arpa. | 172.in-addr.arpa. | (t,w,x,v,u,y,z,r).arin.net. |
| 4 | 100.164.172.in-addr.arpa. | 164.172.in-addr.arpa. | (daha-02,daha-01,daha-07).ns.aol.com. |
We pick