--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6263591099 dns-udp-queries-received-ipv6: 865497338 dns-tcp-queries-received-ipv4: 436697862 dns-tcp-queries-received-ipv6: 68857024 dns-udp-responses-sent-ipv4: 5879750396 dns-udp-responses-sent-ipv6: 823200779 dns-tcp-responses-sent-ipv4: 280961720 dns-tcp-responses-sent-ipv6: 45698448