--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6822128880 dns-udp-queries-received-ipv6: 1136471417 dns-tcp-queries-received-ipv4: 317161690 dns-tcp-queries-received-ipv6: 157922023 dns-udp-responses-sent-ipv4: 6513495344 dns-udp-responses-sent-ipv6: 1022217325 dns-tcp-responses-sent-ipv4: 284359158 dns-tcp-responses-sent-ipv6: 99834278