| step | query | auth | servers |
| 1 | 235.42.152.211.in-addr.arpa. | . | (j,b,e,k,g,m,i,d,a,f,c,l,h).root-servers.net. |
| 2 | 235.42.152.211.in-addr.arpa. | in-addr.arpa. | (d,e,c,a,b,f).in-addr-servers.arpa. |
| 3 | 235.42.152.211.in-addr.arpa. | 211.in-addr.arpa. | tinnie.arin.net. apnic1.dnsnode.net. sec1.authdns.ripe.net. ns1.apnic.net. ns3.apnic.net. ns4.apnic.net. dns1.telstra.net. |
| 4 | 235.42.152.211.in-addr.arpa. | 152.211.in-addr.arpa. | (c,b,a).in-addr.cn. |
| 5 | 235.42.152.211.in-addr.arpa. | 42.152.211.in-addr.arpa. | ns2.21viacloud.com. ns1.21viacloud.com. ns1.21vianet.com.cn. ns2.21vianet.com.cn. |
We pick