| step | query | auth | servers |
| 1 | 103.56.4.64.in-addr.arpa. | . | (k,a,i,j,h,b,g,m,c,d,f,l,e).root-servers.net. |
| 2 | 103.56.4.64.in-addr.arpa. | in-addr.arpa. | (b,f,a,e,c,d).in-addr-servers.arpa. |
| 3 | 103.56.4.64.in-addr.arpa. | 64.in-addr.arpa. | (r,w,x,t,v,u,z,y).arin.net. |
| 4 | 103.56.4.64.in-addr.arpa. | 56.4.64.in-addr.arpa. | (ns2,ns4,ns5,ns3,ns1).msft.net. |
We pick