--- service: a.root-servers.net start-period: '2014-12-10T00:00:00Z' end-period: '2014-12-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3320296476 dns-udp-queries-received-ipv6: 213233040 dns-tcp-queries-received-ipv4: 20017796 dns-tcp-queries-received-ipv6: 3400943 dns-udp-responses-sent-ipv4: 3319411485 dns-udp-responses-sent-ipv6: 213067103 dns-tcp-responses-sent-ipv4: 18667961 dns-tcp-responses-sent-ipv6: 1166268