--- service: j.root-servers.net start-period: '2016-01-09T00:00:00Z' end-period: '2016-01-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4483470641 dns-udp-queries-received-ipv6: 549983248 dns-tcp-queries-received-ipv4: 99760954 dns-tcp-queries-received-ipv6: 1824968 dns-udp-responses-sent-ipv4: 4137561765 dns-udp-responses-sent-ipv6: 552757188 dns-tcp-responses-sent-ipv4: 86101823 dns-tcp-responses-sent-ipv6: 296156