--- service: j.root-servers.net start-period: '2015-07-07T00:00:00Z' end-period: '2015-07-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3267959050 dns-udp-queries-received-ipv6: 270447677 dns-tcp-queries-received-ipv4: 35625860 dns-tcp-queries-received-ipv6: 20960223 dns-udp-responses-sent-ipv4: 3207767137 dns-udp-responses-sent-ipv6: 269921681 dns-tcp-responses-sent-ipv4: 34648256 dns-tcp-responses-sent-ipv6: 19134946