--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7556254418 dns-udp-queries-received-ipv6: 1201098047 dns-tcp-queries-received-ipv4: 604770877 dns-tcp-queries-received-ipv6: 72194395 dns-udp-responses-sent-ipv4: 6939055445 dns-udp-responses-sent-ipv6: 1156797060 dns-tcp-responses-sent-ipv4: 415824403 dns-tcp-responses-sent-ipv6: 51698729