--- service: j.root-servers.net start-period: '2015-09-06T00:00:00Z' end-period: '2015-09-06T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4431527114 dns-udp-queries-received-ipv6: 254909170 dns-tcp-queries-received-ipv4: 63044246 dns-tcp-queries-received-ipv6: 20038869 dns-udp-responses-sent-ipv4: 3387911794 dns-udp-responses-sent-ipv6: 255636467 dns-tcp-responses-sent-ipv4: 61450325 dns-tcp-responses-sent-ipv6: 18530598