--- service: a.root-servers.net start-period: '2015-02-14T00:00:00Z' end-period: '2015-02-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2690270596 dns-udp-queries-received-ipv6: 200116632 dns-tcp-queries-received-ipv4: 14479988 dns-tcp-queries-received-ipv6: 1959846 dns-udp-responses-sent-ipv4: 2688302761 dns-udp-responses-sent-ipv6: 200090572 dns-tcp-responses-sent-ipv4: 12343997 dns-tcp-responses-sent-ipv6: 1256012