--- service: a.root-servers.net start-period: '2014-07-10T00:00:00Z' end-period: '2014-07-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2191463317 dns-udp-queries-received-ipv6: 135078914 dns-tcp-queries-received-ipv4: 22375285 dns-tcp-queries-received-ipv6: 970460 dns-udp-responses-sent-ipv4: 2191238659 dns-udp-responses-sent-ipv6: 135069594 dns-tcp-responses-sent-ipv4: 22468790 dns-tcp-responses-sent-ipv6: 471247