--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7288973749 dns-udp-queries-received-ipv6: 1239455861 dns-tcp-queries-received-ipv4: 749358128 dns-tcp-queries-received-ipv6: 75652644 dns-udp-responses-sent-ipv4: 6653371630 dns-udp-responses-sent-ipv6: 1194367992 dns-tcp-responses-sent-ipv4: 528139900 dns-tcp-responses-sent-ipv6: 54203911