--- service: a.root-servers.net start-period: '2014-09-02T00:00:00Z' end-period: '2014-09-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1976687058 dns-udp-queries-received-ipv6: 152179109 dns-tcp-queries-received-ipv4: 17561224 dns-tcp-queries-received-ipv6: 1566185 dns-udp-responses-sent-ipv4: 1975334300 dns-udp-responses-sent-ipv6: 152098090 dns-tcp-responses-sent-ipv4: 16660915 dns-tcp-responses-sent-ipv6: 949907