--- service: a.root-servers.net start-period: '2015-07-10T00:00:00Z' end-period: '2015-07-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3485031600 dns-udp-queries-received-ipv6: 264125435 dns-tcp-queries-received-ipv4: 18235594 dns-tcp-queries-received-ipv6: 10581923 dns-udp-responses-sent-ipv4: 3512589520 dns-udp-responses-sent-ipv6: 266215002 dns-tcp-responses-sent-ipv4: 15647696 dns-tcp-responses-sent-ipv6: 9034653