--- service: j.root-servers.net start-period: '2014-05-20T00:00:00Z' end-period: '2014-05-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3112159193 dns-udp-queries-received-ipv6: 252475875 dns-tcp-queries-received-ipv4: 24034106 dns-tcp-queries-received-ipv6: 3386514 dns-udp-responses-sent-ipv4: 3115977686 dns-udp-responses-sent-ipv6: 252168239 dns-tcp-responses-sent-ipv4: 23798889 dns-tcp-responses-sent-ipv6: 199411