--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6489832509 dns-udp-queries-received-ipv6: 1340669439 dns-tcp-queries-received-ipv4: 575410510 dns-tcp-queries-received-ipv6: 101184698 dns-udp-responses-sent-ipv4: 6003202573 dns-udp-responses-sent-ipv6: 1336653657 dns-tcp-responses-sent-ipv4: 401888506 dns-tcp-responses-sent-ipv6: 100679787