--- service: a.root-servers.net start-period: '2014-05-04T00:00:00Z' end-period: '2014-05-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1889684767 dns-udp-queries-received-ipv6: 80086586 dns-tcp-queries-received-ipv4: 10084685 dns-tcp-queries-received-ipv6: 1337343 dns-udp-responses-sent-ipv4: 1888148182 dns-udp-responses-sent-ipv6: 80094625 dns-tcp-responses-sent-ipv4: 10042963 dns-tcp-responses-sent-ipv6: 5303