--- service: a.root-servers.net start-period: '2014-02-07T00:00:00Z' end-period: '2014-02-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1378606749 dns-udp-queries-received-ipv6: 81273086 dns-tcp-queries-received-ipv4: 7782689 dns-tcp-queries-received-ipv6: 1101481 dns-udp-responses-sent-ipv4: 1378655955 dns-udp-responses-sent-ipv6: 81263741 dns-tcp-responses-sent-ipv4: 7783703 dns-tcp-responses-sent-ipv6: 543