--- service: j.root-servers.net start-period: '2014-06-30T00:00:00Z' end-period: '2014-06-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4112468969 dns-udp-queries-received-ipv6: 188822520 dns-tcp-queries-received-ipv4: 60064142 dns-tcp-queries-received-ipv6: 3344110 dns-udp-responses-sent-ipv4: 4129750404 dns-udp-responses-sent-ipv6: 188415391 dns-tcp-responses-sent-ipv4: 61956302 dns-tcp-responses-sent-ipv6: 2490691