--- service: j.root-servers.net start-period: '2014-02-19T00:00:00Z' end-period: '2014-02-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3251815510 dns-udp-queries-received-ipv6: 233425321 dns-tcp-queries-received-ipv4: 28603073 dns-tcp-queries-received-ipv6: 4330010 dns-udp-responses-sent-ipv4: 3222905223 dns-udp-responses-sent-ipv6: 233277289 dns-tcp-responses-sent-ipv4: 25572444 dns-tcp-responses-sent-ipv6: 190