| step | query | auth | servers |
| 1 | 11.242.171.69.in-addr.arpa. | . | (i,j,e,a,c,d,b,g,m,l,h,f,k).root-servers.net. |
| 2 | 11.242.171.69.in-addr.arpa. | in-addr.arpa. | (f,d,e,b,a,c).in-addr-servers.arpa. |
| 3 | 11.242.171.69.in-addr.arpa. | 69.in-addr.arpa. | (t,r,v,z,x,y,u,w).arin.net. |
| 4 | 11.242.171.69.in-addr.arpa. | 242.171.69.in-addr.arpa. | (b,a).ns.facebook.com. |
We pick