--- service: a.root-servers.net start-period: '2016-02-17T00:00:00Z' end-period: '2016-02-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5218930332 dns-udp-queries-received-ipv6: 339130041 dns-tcp-queries-received-ipv4: 79155803 dns-tcp-queries-received-ipv6: 2913089 dns-udp-responses-sent-ipv4: 5199956459 dns-udp-responses-sent-ipv6: 338874702 dns-tcp-responses-sent-ipv4: 67964808 dns-tcp-responses-sent-ipv6: 275032