--- service: a.root-servers.net start-period: '2015-08-27T00:00:00Z' end-period: '2015-08-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4663921102 dns-udp-queries-received-ipv6: 288798395 dns-tcp-queries-received-ipv4: 20695293 dns-tcp-queries-received-ipv6: 11010167 dns-udp-responses-sent-ipv4: 4691435544 dns-udp-responses-sent-ipv6: 291446455 dns-tcp-responses-sent-ipv4: 17512976 dns-tcp-responses-sent-ipv6: 8978313