--- service: j.root-servers.net start-period: '2016-06-17T00:00:00Z' end-period: '2016-06-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5852110356 dns-udp-queries-received-ipv6: 491187149 dns-tcp-queries-received-ipv4: 138152147 dns-tcp-queries-received-ipv6: 4984285 dns-udp-responses-sent-ipv4: 5720572247 dns-udp-responses-sent-ipv6: 492729520 dns-tcp-responses-sent-ipv4: 125906526 dns-tcp-responses-sent-ipv6: 2564825