--- service: j.root-servers.net start-period: '2015-09-04T00:00:00Z' end-period: '2015-09-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4664169245 dns-udp-queries-received-ipv6: 281398611 dns-tcp-queries-received-ipv4: 62612816 dns-tcp-queries-received-ipv6: 20470481 dns-udp-responses-sent-ipv4: 3604678060 dns-udp-responses-sent-ipv6: 282262849 dns-tcp-responses-sent-ipv4: 61057626 dns-tcp-responses-sent-ipv6: 18736311