--- service: a.root-servers.net start-period: '2014-01-15T00:00:00Z' end-period: '2014-01-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1303799985 dns-udp-queries-received-ipv6: 43414554 dns-tcp-queries-received-ipv4: 7616482 dns-tcp-queries-received-ipv6: 1107148 dns-udp-responses-sent-ipv4: 1300783570 dns-udp-responses-sent-ipv6: 43406964 dns-tcp-responses-sent-ipv4: 7601248 dns-tcp-responses-sent-ipv6: 70