| step | query | auth | servers |
| 1 | 108.1.168.192.in-addr.arpa. | . | (m,f,i,l,g,c,b,j,e,h,d,k,a).root-servers.net. |
| 2 | 108.1.168.192.in-addr.arpa. | in-addr.arpa. | (b,e,d,c,f,a).in-addr-servers.arpa. |
| 3 | 108.1.168.192.in-addr.arpa. | 192.in-addr.arpa. | (x,u,z,w,v,t,r,y).arin.net. |
| 4 | 108.1.168.192.in-addr.arpa. | 168.192.in-addr.arpa. | (blackhole-1,blackhole-2).iana.org. |
We pick