--- service: j.root-servers.net start-period: '2016-01-04T00:00:00Z' end-period: '2016-01-04T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3576411393 dns-udp-queries-received-ipv6: 541624940 dns-tcp-queries-received-ipv4: 66347289 dns-tcp-queries-received-ipv6: 1885549 dns-udp-responses-sent-ipv4: 3544700213 dns-udp-responses-sent-ipv6: 542922422 dns-tcp-responses-sent-ipv4: 55595913 dns-tcp-responses-sent-ipv6: 283782