--- service: d.root-servers.net start-period: '2016-02-02T00:00:00Z' end-period: '2016-02-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5006824829 dns-udp-queries-received-ipv6: 430520232 dns-tcp-queries-received-ipv4: 21761738 dns-tcp-queries-received-ipv6: 648826 dns-udp-responses-sent-ipv4: 4992646800 dns-udp-responses-sent-ipv6: 430335611 dns-tcp-responses-sent-ipv4: 21734516 dns-tcp-responses-sent-ipv6: 648540