--- service: j.root-servers.net start-period: '2014-05-09T00:00:00Z' end-period: '2014-05-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2777041050 dns-udp-queries-received-ipv6: 223335221 dns-tcp-queries-received-ipv4: 25029120 dns-tcp-queries-received-ipv6: 3908469 dns-udp-responses-sent-ipv4: 2768042736 dns-udp-responses-sent-ipv6: 223262415 dns-tcp-responses-sent-ipv4: 23597075 dns-tcp-responses-sent-ipv6: 210