--- service: a.root-servers.net start-period: '2013-10-27T00:00:00Z' end-period: '2013-10-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1255656638 dns-udp-queries-received-ipv6: 76131754 dns-tcp-queries-received-ipv4: 6701055 dns-tcp-queries-received-ipv6: 1455311 dns-udp-responses-sent-ipv4: 1255717965 dns-udp-responses-sent-ipv6: 76140306 dns-tcp-responses-sent-ipv4: 7025574 dns-tcp-responses-sent-ipv6: 17780