--- service: d.root-servers.net start-period: '2016-02-09T00:00:00Z' end-period: '2016-02-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4355297647 dns-udp-queries-received-ipv6: 418347631 dns-tcp-queries-received-ipv4: 19370669 dns-tcp-queries-received-ipv6: 585386 dns-udp-responses-sent-ipv4: 4342186607 dns-udp-responses-sent-ipv6: 418184918 dns-tcp-responses-sent-ipv4: 19360005 dns-tcp-responses-sent-ipv6: 585063