--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5793294118 dns-udp-queries-received-ipv6: 763580732 dns-tcp-queries-received-ipv4: 426217428 dns-tcp-queries-received-ipv6: 64057366 dns-udp-responses-sent-ipv4: 5426282393 dns-udp-responses-sent-ipv6: 724449135 dns-tcp-responses-sent-ipv4: 273930955 dns-tcp-responses-sent-ipv6: 44133507