--- version: rssac002v3 service: j.root-servers.net start-period: '2019-05-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7569209235 dns-udp-queries-received-ipv6: 1319867229 dns-tcp-queries-received-ipv4: 694221332 dns-tcp-queries-received-ipv6: 74467750 dns-udp-responses-sent-ipv4: 6884154324 dns-udp-responses-sent-ipv6: 1277659040 dns-tcp-responses-sent-ipv4: 477936050 dns-tcp-responses-sent-ipv6: 54975220