--- service: j.root-servers.net start-period: '2015-04-27T00:00:00Z' end-period: '2015-04-27T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3415071899 dns-udp-queries-received-ipv6: 211469555 dns-tcp-queries-received-ipv4: 24134024 dns-tcp-queries-received-ipv6: 5044921 dns-udp-responses-sent-ipv4: 3407486751 dns-udp-responses-sent-ipv6: 211223488 dns-tcp-responses-sent-ipv4: 23749866 dns-tcp-responses-sent-ipv6: 4244845