--- service: j.root-servers.net start-period: '2015-08-18T00:00:00Z' end-period: '2015-08-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4964978730 dns-udp-queries-received-ipv6: 306813803 dns-tcp-queries-received-ipv4: 69875605 dns-tcp-queries-received-ipv6: 23775465 dns-udp-responses-sent-ipv4: 3901644691 dns-udp-responses-sent-ipv6: 307441689 dns-tcp-responses-sent-ipv4: 69318538 dns-tcp-responses-sent-ipv6: 21839849