--- service: j.root-servers.net start-period: '2015-07-02T00:00:00Z' end-period: '2015-07-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3172805880 dns-udp-queries-received-ipv6: 264797839 dns-tcp-queries-received-ipv4: 31631424 dns-tcp-queries-received-ipv6: 21821160 dns-udp-responses-sent-ipv4: 3116310529 dns-udp-responses-sent-ipv6: 264690378 dns-tcp-responses-sent-ipv4: 31138617 dns-tcp-responses-sent-ipv6: 19954771