| step | query | auth | servers |
| 1 | 211.254.194.202.in-addr.arpa. | . | (k,g,i,f,h,c,e,b,l,m,d,a,j).root-servers.net. |
| 2 | 211.254.194.202.in-addr.arpa. | in-addr.arpa. | (b,a,c,e,d,f).in-addr-servers.arpa. |
| 3 | 211.254.194.202.in-addr.arpa. | 202.in-addr.arpa. | ns3.apnic.net. tinnie.arin.net. ns4.apnic.net. apnic1.dnsnode.net. dns1.telstra.net. sec1.authdns.ripe.net. ns1.apnic.net. |
| 4 | 211.254.194.202.in-addr.arpa. | 194.202.in-addr.arpa. | dns.edu.cn. dns2.edu.cn. ns2.net.edu.cn. |
| 5 | 211.254.194.202.in-addr.arpa. | 254.194.202.in-addr.arpa. | (public,civil).sdie.edu.cn. |
We pick