| step | query | auth | servers |
| 1 | 9.1.168.192.in-addr.arpa. | . | (e,m,k,g,f,h,j,i,l,a,c,b,d).root-servers.net. |
| 2 | 9.1.168.192.in-addr.arpa. | in-addr.arpa. | (f,e,b,a,d,c).in-addr-servers.arpa. |
| 3 | 9.1.168.192.in-addr.arpa. | 192.in-addr.arpa. | (t,z,x,u,y,v,r,w).arin.net. |
| 4 | 9.1.168.192.in-addr.arpa. | 168.192.in-addr.arpa. | (blackhole-2,blackhole-1).iana.org. |
We pick