--- service: j.root-servers.net start-period: '2013-12-14T00:00:00Z' end-period: '2013-12-14T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2286303799 dns-udp-queries-received-ipv6: 126435487 dns-tcp-queries-received-ipv4: 22147102 dns-tcp-queries-received-ipv6: 4100269 dns-udp-responses-sent-ipv4: 2279645372 dns-udp-responses-sent-ipv6: 126349212 dns-tcp-responses-sent-ipv4: 20457905 dns-tcp-responses-sent-ipv6: 174