--- service: a.root-servers.net start-period: '2014-07-12T00:00:00Z' end-period: '2014-07-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 1760506535 dns-udp-queries-received-ipv6: 116446008 dns-tcp-queries-received-ipv4: 14794146 dns-tcp-queries-received-ipv6: 1194548 dns-udp-responses-sent-ipv4: 1760316005 dns-udp-responses-sent-ipv6: 116442982 dns-tcp-responses-sent-ipv4: 14840689 dns-tcp-responses-sent-ipv6: 471128