--- service: j.root-servers.net start-period: '2015-07-16T00:00:00Z' end-period: '2015-07-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3234384601 dns-udp-queries-received-ipv6: 291847959 dns-tcp-queries-received-ipv4: 33571291 dns-tcp-queries-received-ipv6: 23434117 dns-udp-responses-sent-ipv4: 3154933854 dns-udp-responses-sent-ipv6: 291737496 dns-tcp-responses-sent-ipv4: 32672003 dns-tcp-responses-sent-ipv6: 21637742