--- service: a.root-servers.net start-period: '2014-02-23T00:00:00Z' end-period: '2014-02-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1929378437 dns-udp-queries-received-ipv6: 75064061 dns-tcp-queries-received-ipv4: 9789608 dns-tcp-queries-received-ipv6: 1110901 dns-udp-responses-sent-ipv4: 1890233219 dns-udp-responses-sent-ipv6: 75048762 dns-tcp-responses-sent-ipv4: 9815813 dns-tcp-responses-sent-ipv6: 116