--- service: j.root-servers.net start-period: '2015-07-11T00:00:00Z' end-period: '2015-07-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3946778331 dns-udp-queries-received-ipv6: 270083778 dns-tcp-queries-received-ipv4: 31488820 dns-tcp-queries-received-ipv6: 23881332 dns-udp-responses-sent-ipv4: 3866749378 dns-udp-responses-sent-ipv6: 269978866 dns-tcp-responses-sent-ipv4: 30717209 dns-tcp-responses-sent-ipv6: 22288499