--- service: a.root-servers.net start-period: '2014-11-18T00:00:00Z' end-period: '2014-11-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2725259030 dns-udp-queries-received-ipv6: 200778029 dns-tcp-queries-received-ipv4: 16625246 dns-tcp-queries-received-ipv6: 2200350 dns-udp-responses-sent-ipv4: 2724699332 dns-udp-responses-sent-ipv6: 200682548 dns-tcp-responses-sent-ipv4: 15091654 dns-tcp-responses-sent-ipv6: 1518225