--- service: j.root-servers.net start-period: '2014-07-18T00:00:00Z' end-period: '2014-07-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4793219793 dns-udp-queries-received-ipv6: 295122365 dns-tcp-queries-received-ipv4: 59131038 dns-tcp-queries-received-ipv6: 6564256 dns-udp-responses-sent-ipv4: 4818304003 dns-udp-responses-sent-ipv6: 296581317 dns-tcp-responses-sent-ipv4: 61029302 dns-tcp-responses-sent-ipv6: 3215136