--- service: a.root-servers.net start-period: '2014-07-17T00:00:00Z' end-period: '2014-07-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2545701701 dns-udp-queries-received-ipv6: 170291200 dns-tcp-queries-received-ipv4: 38196478 dns-tcp-queries-received-ipv6: 2287370 dns-udp-responses-sent-ipv4: 2545642837 dns-udp-responses-sent-ipv6: 170308416 dns-tcp-responses-sent-ipv4: 38573565 dns-tcp-responses-sent-ipv6: 490343