--- version: rssac002v3 service: j.root-servers.net start-period: '2021-02-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6783561750 dns-udp-queries-received-ipv6: 1341076975 dns-tcp-queries-received-ipv4: 597353868 dns-tcp-queries-received-ipv6: 99971705 dns-udp-responses-sent-ipv4: 6240367052 dns-udp-responses-sent-ipv6: 1332304106 dns-tcp-responses-sent-ipv4: 406134704 dns-tcp-responses-sent-ipv6: 97604679