--- service: a.root-servers.net start-period: '2014-02-04T00:00:00Z' end-period: '2014-02-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1320174416 dns-udp-queries-received-ipv6: 84757038 dns-tcp-queries-received-ipv4: 7444069 dns-tcp-queries-received-ipv6: 1117664 dns-udp-responses-sent-ipv4: 1320186170 dns-udp-responses-sent-ipv6: 84745757 dns-tcp-responses-sent-ipv4: 7445683 dns-tcp-responses-sent-ipv6: 106