--- service: a.root-servers.net start-period: '2014-06-27T00:00:00Z' end-period: '2014-06-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1837183539 dns-udp-queries-received-ipv6: 119891501 dns-tcp-queries-received-ipv4: 14331038 dns-tcp-queries-received-ipv6: 795467 dns-udp-responses-sent-ipv4: 1837026663 dns-udp-responses-sent-ipv6: 119928548 dns-tcp-responses-sent-ipv4: 14396915 dns-tcp-responses-sent-ipv6: 501282