--- service: a.root-servers.net start-period: '2014-02-27T00:00:00Z' end-period: '2014-02-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2279470576 dns-udp-queries-received-ipv6: 87315182 dns-tcp-queries-received-ipv4: 11531423 dns-tcp-queries-received-ipv6: 1186979 dns-udp-responses-sent-ipv4: 2255907480 dns-udp-responses-sent-ipv6: 87282802 dns-tcp-responses-sent-ipv4: 11572674 dns-tcp-responses-sent-ipv6: 123