| step | query | auth | servers |
| 1 | 113.70.194.173.in-addr.arpa. | . | (i,c,g,h,k,l,f,j,b,e,a,d,m).root-servers.net. |
| 2 | 113.70.194.173.in-addr.arpa. | in-addr.arpa. | (c,f,b,d,a,e).in-addr-servers.arpa. |
| 3 | 113.70.194.173.in-addr.arpa. | 173.in-addr.arpa. | (u,x,t,z,v,w,r,y).arin.net. |
| 4 | 113.70.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns3,ns2,ns4,ns1).google.com. |
We pick