--- service: d.root-servers.net start-period: '2016-02-16T00:00:00Z' end-period: '2016-02-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4477598733 dns-udp-queries-received-ipv6: 443034302 dns-tcp-queries-received-ipv4: 25415979 dns-tcp-queries-received-ipv6: 681557 dns-udp-responses-sent-ipv4: 4460172347 dns-udp-responses-sent-ipv6: 442757481 dns-tcp-responses-sent-ipv4: 25347414 dns-tcp-responses-sent-ipv6: 681228