--- service: a.root-servers.net start-period: '2014-02-16T00:00:00Z' end-period: '2014-02-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1946288844 dns-udp-queries-received-ipv6: 77962604 dns-tcp-queries-received-ipv4: 9568184 dns-tcp-queries-received-ipv6: 1044207 dns-udp-responses-sent-ipv4: 1945159959 dns-udp-responses-sent-ipv6: 77959999 dns-tcp-responses-sent-ipv4: 9590575 dns-tcp-responses-sent-ipv6: 102