--- service: a.root-servers.net start-period: '2015-03-08T00:00:00Z' end-period: '2015-03-08T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2433493899 dns-udp-queries-received-ipv6: 204289266 dns-tcp-queries-received-ipv4: 16709398 dns-tcp-queries-received-ipv6: 2182248 dns-udp-responses-sent-ipv4: 2426669606 dns-udp-responses-sent-ipv6: 204037533 dns-tcp-responses-sent-ipv4: 14704914 dns-tcp-responses-sent-ipv6: 1454256