--- service: j.root-servers.net start-period: '2015-09-07T00:00:00Z' end-period: '2015-09-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4671612496 dns-udp-queries-received-ipv6: 271227941 dns-tcp-queries-received-ipv4: 62298631 dns-tcp-queries-received-ipv6: 20249497 dns-udp-responses-sent-ipv4: 3602407295 dns-udp-responses-sent-ipv6: 272006434 dns-tcp-responses-sent-ipv4: 60719827 dns-tcp-responses-sent-ipv6: 18480760