--- service: a.root-servers.net start-period: '2014-02-18T00:00:00Z' end-period: '2014-02-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2283831240 dns-udp-queries-received-ipv6: 84421504 dns-tcp-queries-received-ipv4: 11418644 dns-tcp-queries-received-ipv6: 1118580 dns-udp-responses-sent-ipv4: 2283304355 dns-udp-responses-sent-ipv6: 84406058 dns-tcp-responses-sent-ipv4: 11476193 dns-tcp-responses-sent-ipv6: 110