--- service: j.root-servers.net start-period: '2015-04-17T00:00:00Z' end-period: '2015-04-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3155435978 dns-udp-queries-received-ipv6: 210151717 dns-tcp-queries-received-ipv4: 24269098 dns-tcp-queries-received-ipv6: 5052523 dns-udp-responses-sent-ipv4: 3119049071 dns-udp-responses-sent-ipv6: 210055919 dns-tcp-responses-sent-ipv4: 23766806 dns-tcp-responses-sent-ipv6: 4248981