| step | query | auth | servers |
| 1 | 29.242.171.69.in-addr.arpa. | . | (l,c,e,d,g,f,k,i,j,h,a,b,m).root-servers.net. |
| 2 | 29.242.171.69.in-addr.arpa. | in-addr.arpa. | (e,d,f,c,b,a).in-addr-servers.arpa. |
| 3 | 29.242.171.69.in-addr.arpa. | 69.in-addr.arpa. | (v,t,w,r,u,z,y,x).arin.net. |
| 4 | 29.242.171.69.in-addr.arpa. | 242.171.69.in-addr.arpa. | (a,b).ns.facebook.com. |
We pick