--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6679858774 dns-udp-queries-received-ipv6: 768269723 dns-tcp-queries-received-ipv4: 423131608 dns-tcp-queries-received-ipv6: 38344740 dns-udp-responses-sent-ipv4: 6298189908 dns-udp-responses-sent-ipv6: 766099266 dns-tcp-responses-sent-ipv4: 336160056 dns-tcp-responses-sent-ipv6: 36332536