--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6318712281 dns-udp-queries-received-ipv6: 1122334273 dns-tcp-queries-received-ipv4: 330369189 dns-tcp-queries-received-ipv6: 160928240 dns-udp-responses-sent-ipv4: 6065789306 dns-udp-responses-sent-ipv6: 998722688 dns-tcp-responses-sent-ipv4: 296506690 dns-tcp-responses-sent-ipv6: 97775780