--- service: d.root-servers.net start-period: '2016-03-22T00:00:00Z' end-period: '2016-03-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4596931856 dns-udp-queries-received-ipv6: 563217298 dns-tcp-queries-received-ipv4: 30260685 dns-tcp-queries-received-ipv6: 1092840 dns-udp-responses-sent-ipv4: 4574992477 dns-udp-responses-sent-ipv6: 562946141 dns-tcp-responses-sent-ipv4: 30244781 dns-tcp-responses-sent-ipv6: 1092815