--- service: a.root-servers.net start-period: '2015-02-10T00:00:00Z' end-period: '2015-02-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3067897997 dns-udp-queries-received-ipv6: 228288518 dns-tcp-queries-received-ipv4: 16872552 dns-tcp-queries-received-ipv6: 1820836 dns-udp-responses-sent-ipv4: 3067651670 dns-udp-responses-sent-ipv6: 228196134 dns-tcp-responses-sent-ipv4: 14863729 dns-tcp-responses-sent-ipv6: 997241