--- service: j.root-servers.net start-period: '2014-04-30T00:00:00Z' end-period: '2014-04-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2653377103 dns-udp-queries-received-ipv6: 226727740 dns-tcp-queries-received-ipv4: 23425287 dns-tcp-queries-received-ipv6: 4890628 dns-udp-responses-sent-ipv4: 2612126262 dns-udp-responses-sent-ipv6: 226548759 dns-tcp-responses-sent-ipv4: 21380421 dns-tcp-responses-sent-ipv6: 205