--- service: j.root-servers.net start-period: '2015-06-09T00:00:00Z' end-period: '2015-06-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3184248952 dns-udp-queries-received-ipv6: 209626134 dns-tcp-queries-received-ipv4: 26906420 dns-tcp-queries-received-ipv6: 12737715 dns-udp-responses-sent-ipv4: 3111632468 dns-udp-responses-sent-ipv6: 209598671 dns-tcp-responses-sent-ipv4: 26000542 dns-tcp-responses-sent-ipv6: 10966289