--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7364183249 dns-udp-queries-received-ipv6: 1355553777 dns-tcp-queries-received-ipv4: 442375188 dns-tcp-queries-received-ipv6: 101852124 dns-udp-responses-sent-ipv4: 6864318662 dns-udp-responses-sent-ipv6: 1287270055 dns-tcp-responses-sent-ipv4: 340985527 dns-tcp-responses-sent-ipv6: 69493613