--- service: j.root-servers.net start-period: '2015-12-26T00:00:00Z' end-period: '2015-12-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3168446697 dns-udp-queries-received-ipv6: 508694859 dns-tcp-queries-received-ipv4: 66886672 dns-tcp-queries-received-ipv6: 1527606 dns-udp-responses-sent-ipv4: 3087535739 dns-udp-responses-sent-ipv6: 510385754 dns-tcp-responses-sent-ipv4: 59125123 dns-tcp-responses-sent-ipv6: 276617