--- service: a.root-servers.net start-period: '2014-06-19T00:00:00Z' end-period: '2014-06-19T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1404119260 dns-udp-queries-received-ipv6: 92601559 dns-tcp-queries-received-ipv4: 8053783 dns-tcp-queries-received-ipv6: 1211173 dns-udp-responses-sent-ipv4: 1403918918 dns-udp-responses-sent-ipv6: 92616123 dns-tcp-responses-sent-ipv4: 8079114 dns-tcp-responses-sent-ipv6: 480691