--- service: j.root-servers.net start-period: '2016-06-21T00:00:00Z' end-period: '2016-06-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5875144839 dns-udp-queries-received-ipv6: 727337351 dns-tcp-queries-received-ipv4: 134799371 dns-tcp-queries-received-ipv6: 4033148 dns-udp-responses-sent-ipv4: 5762117027 dns-udp-responses-sent-ipv6: 727304922 dns-tcp-responses-sent-ipv4: 125016825 dns-tcp-responses-sent-ipv6: 1282492