--- service: j.root-servers.net start-period: '2016-07-20T00:00:00Z' end-period: '2016-07-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5775369830 dns-udp-queries-received-ipv6: 713430843 dns-tcp-queries-received-ipv4: 214130794 dns-tcp-queries-received-ipv6: 5451010 dns-udp-responses-sent-ipv4: 5611483271 dns-udp-responses-sent-ipv6: 719314351 dns-tcp-responses-sent-ipv4: 161292687 dns-tcp-responses-sent-ipv6: 2337248