--- service: a.root-servers.net start-period: '2014-06-29T00:00:00Z' end-period: '2014-06-29T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1904992706 dns-udp-queries-received-ipv6: 104922832 dns-tcp-queries-received-ipv4: 13962016 dns-tcp-queries-received-ipv6: 734394 dns-udp-responses-sent-ipv4: 1904920579 dns-udp-responses-sent-ipv6: 104930753 dns-tcp-responses-sent-ipv4: 14000437 dns-tcp-responses-sent-ipv6: 501021