--- service: a.root-servers.net start-period: '2014-02-13T00:00:00Z' end-period: '2014-02-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2244108698 dns-udp-queries-received-ipv6: 83257603 dns-tcp-queries-received-ipv4: 11733163 dns-tcp-queries-received-ipv6: 1120631 dns-udp-responses-sent-ipv4: 2241318831 dns-udp-responses-sent-ipv6: 83246542 dns-tcp-responses-sent-ipv4: 11783464 dns-tcp-responses-sent-ipv6: 101