--- service: j.root-servers.net start-period: '2015-05-16T00:00:00Z' end-period: '2015-05-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2984000321 dns-udp-queries-received-ipv6: 265312125 dns-tcp-queries-received-ipv4: 23519144 dns-tcp-queries-received-ipv6: 5338101 dns-udp-responses-sent-ipv4: 2913520007 dns-udp-responses-sent-ipv6: 265144647 dns-tcp-responses-sent-ipv4: 22924621 dns-tcp-responses-sent-ipv6: 4389050