--- service: a.root-servers.net start-period: '2014-07-25T00:00:00Z' end-period: '2014-07-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1773830217 dns-udp-queries-received-ipv6: 118589894 dns-tcp-queries-received-ipv4: 14154354 dns-tcp-queries-received-ipv6: 1142763 dns-udp-responses-sent-ipv4: 1773643586 dns-udp-responses-sent-ipv6: 118589632 dns-tcp-responses-sent-ipv4: 14368337 dns-tcp-responses-sent-ipv6: 431141