--- service: d.root-servers.net start-period: '2016-02-27T00:00:00Z' end-period: '2016-02-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3804194823 dns-udp-queries-received-ipv6: 504100133 dns-tcp-queries-received-ipv4: 24279757 dns-tcp-queries-received-ipv6: 1121370 dns-udp-responses-sent-ipv4: 3787670951 dns-udp-responses-sent-ipv6: 503777662 dns-tcp-responses-sent-ipv4: 24258488 dns-tcp-responses-sent-ipv6: 1121329