--- service: a.root-servers.net start-period: '2014-09-01T00:00:00Z' end-period: '2014-09-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2032476371 dns-udp-queries-received-ipv6: 157046865 dns-tcp-queries-received-ipv4: 21658310 dns-tcp-queries-received-ipv6: 1678432 dns-udp-responses-sent-ipv4: 2032379777 dns-udp-responses-sent-ipv6: 157032375 dns-tcp-responses-sent-ipv4: 20611314 dns-tcp-responses-sent-ipv6: 949399