--- service: a.root-servers.net start-period: '2014-04-17T00:00:00Z' end-period: '2014-04-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2929622661 dns-udp-queries-received-ipv6: 91294842 dns-tcp-queries-received-ipv4: 13349487 dns-tcp-queries-received-ipv6: 1417457 dns-udp-responses-sent-ipv4: 2928993297 dns-udp-responses-sent-ipv6: 91263285 dns-tcp-responses-sent-ipv4: 13389937 dns-tcp-responses-sent-ipv6: 120