--- service: a.root-servers.net start-period: '2014-03-14T00:00:00Z' end-period: '2014-03-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2114403484 dns-udp-queries-received-ipv6: 86449876 dns-tcp-queries-received-ipv4: 10827948 dns-tcp-queries-received-ipv6: 1136719 dns-udp-responses-sent-ipv4: 2091375918 dns-udp-responses-sent-ipv6: 86420309 dns-tcp-responses-sent-ipv4: 10876276 dns-tcp-responses-sent-ipv6: 108