--- service: a.root-servers.net start-period: '2013-11-01T00:00:00Z' end-period: '2013-11-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1463110307 dns-udp-queries-received-ipv6: 86470294 dns-tcp-queries-received-ipv4: 7508230 dns-tcp-queries-received-ipv6: 1437836 dns-udp-responses-sent-ipv4: 1462848150 dns-udp-responses-sent-ipv6: 86481185 dns-tcp-responses-sent-ipv4: 8038811 dns-tcp-responses-sent-ipv6: 70060