--- service: a.root-servers.net start-period: '2014-01-27T00:00:00Z' end-period: '2014-01-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1062945644 dns-udp-queries-received-ipv6: 55259489 dns-tcp-queries-received-ipv4: 6474821 dns-tcp-queries-received-ipv6: 1128806 dns-udp-responses-sent-ipv4: 1062336549 dns-udp-responses-sent-ipv6: 55231458 dns-tcp-responses-sent-ipv4: 6582218 dns-tcp-responses-sent-ipv6: 98