--- service: j.root-servers.net start-period: '2015-09-14T00:00:00Z' end-period: '2015-09-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4844014202 dns-udp-queries-received-ipv6: 291899520 dns-tcp-queries-received-ipv4: 71272196 dns-tcp-queries-received-ipv6: 20561429 dns-udp-responses-sent-ipv4: 3768981776 dns-udp-responses-sent-ipv6: 291040459 dns-tcp-responses-sent-ipv4: 69577883 dns-tcp-responses-sent-ipv6: 18750433