--- service: j.root-servers.net start-period: '2016-12-12T00:00:00Z' end-period: '2016-12-12T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6556912348 dns-udp-queries-received-ipv6: 635104812 dns-tcp-queries-received-ipv4: 225079803 dns-tcp-queries-received-ipv6: 13111056 dns-udp-responses-sent-ipv4: 6446210009 dns-udp-responses-sent-ipv6: 639202011 dns-tcp-responses-sent-ipv4: 198364293 dns-tcp-responses-sent-ipv6: 12968374