--- service: a.root-servers.net start-period: '2014-05-25T00:00:00Z' end-period: '2014-05-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1967967822 dns-udp-queries-received-ipv6: 101237430 dns-tcp-queries-received-ipv4: 10955148 dns-tcp-queries-received-ipv6: 885361 dns-udp-responses-sent-ipv4: 1967304028 dns-udp-responses-sent-ipv6: 101198028 dns-tcp-responses-sent-ipv4: 10976770 dns-tcp-responses-sent-ipv6: 77965