--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7302549907 dns-udp-queries-received-ipv6: 1446707868 dns-tcp-queries-received-ipv4: 648205301 dns-tcp-queries-received-ipv6: 106641655 dns-udp-responses-sent-ipv4: 6719502036 dns-udp-responses-sent-ipv6: 1432925325 dns-tcp-responses-sent-ipv4: 446477063 dns-tcp-responses-sent-ipv6: 101756677