--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6054167564 dns-udp-queries-received-ipv6: 1323296910 dns-tcp-queries-received-ipv4: 507361154 dns-tcp-queries-received-ipv6: 90521660 dns-udp-responses-sent-ipv4: 5632425932 dns-udp-responses-sent-ipv6: 1316134178 dns-tcp-responses-sent-ipv4: 355735675 dns-tcp-responses-sent-ipv6: 89908583