--- service: a.root-servers.net start-period: '2014-06-02T00:00:00Z' end-period: '2014-06-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1842024907 dns-udp-queries-received-ipv6: 113630660 dns-tcp-queries-received-ipv4: 8811357 dns-tcp-queries-received-ipv6: 1224190 dns-udp-responses-sent-ipv4: 1841674319 dns-udp-responses-sent-ipv6: 113571954 dns-tcp-responses-sent-ipv4: 8850609 dns-tcp-responses-sent-ipv6: 113436