DNS/委譲返答/root-serversについて、ここに記述してください。
%dnsq ns com a.root-servers.net ~ 2 com: 509 bytes, 1+0+13+15 records, response, noerror query: 2 com authority: com 172800 NS m.gtld-servers.net authority: com 172800 NS l.gtld-servers.net authority: com 172800 NS k.gtld-servers.net authority: com 172800 NS j.gtld-servers.net authority: com 172800 NS i.gtld-servers.net authority: com 172800 NS h.gtld-servers.net authority: com 172800 NS g.gtld-servers.net authority: com 172800 NS f.gtld-servers.net authority: com 172800 NS e.gtld-servers.net authority: com 172800 NS d.gtld-servers.net authority: com 172800 NS c.gtld-servers.net authority: com 172800 NS b.gtld-servers.net authority: com 172800 NS a.gtld-servers.net additional: m.gtld-servers.net 172800 A 192.55.83.30 additional: l.gtld-servers.net 172800 A 192.41.162.30 additional: k.gtld-servers.net 172800 A 192.52.178.30 additional: j.gtld-servers.net 172800 A 192.48.79.30 additional: i.gtld-servers.net 172800 A 192.43.172.30 additional: h.gtld-servers.net 172800 A 192.54.112.30 additional: g.gtld-servers.net 172800 A 192.42.93.30 additional: f.gtld-servers.net 172800 A 192.35.51.30 additional: e.gtld-servers.net 172800 A 192.12.94.30 additional: d.gtld-servers.net 172800 A 192.31.80.30 additional: c.gtld-servers.net 172800 A 192.26.92.30 additional: b.gtld-servers.net 172800 A 192.33.14.30 additional: b.gtld-servers.net 172800 28 \040\001\005\003#\035\000\000\000\000\000\000\000\002\0000 additional: a.gtld-servers.net 172800 A 192.5.6.30 additional: a.gtld-servers.net 172800 28 \040\001\005\003\250>\000\000\000\000\000\000\000\002\0000