--- service: a.root-servers.net start-period: '2014-05-12T00:00:00Z' end-period: '2014-05-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2436813722 dns-udp-queries-received-ipv6: 94738212 dns-tcp-queries-received-ipv4: 11660328 dns-tcp-queries-received-ipv6: 1130822 dns-udp-responses-sent-ipv4: 2435687398 dns-udp-responses-sent-ipv6: 94680404 dns-tcp-responses-sent-ipv4: 11668086 dns-tcp-responses-sent-ipv6: 108