--- service: a.root-servers.net start-period: '2014-09-09T00:00:00Z' end-period: '2014-09-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2099351914 dns-udp-queries-received-ipv6: 146632286 dns-tcp-queries-received-ipv4: 14113257 dns-tcp-queries-received-ipv6: 1565402 dns-udp-responses-sent-ipv4: 2099812020 dns-udp-responses-sent-ipv6: 146626634 dns-tcp-responses-sent-ipv4: 13428222 dns-tcp-responses-sent-ipv6: 1009681