--- service: j.root-servers.net start-period: '2016-01-23T00:00:00Z' end-period: '2016-01-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4503026737 dns-udp-queries-received-ipv6: 542486096 dns-tcp-queries-received-ipv4: 86158008 dns-tcp-queries-received-ipv6: 1816663 dns-udp-responses-sent-ipv4: 4178723212 dns-udp-responses-sent-ipv6: 547233765 dns-tcp-responses-sent-ipv4: 75563602 dns-tcp-responses-sent-ipv6: 339244