--- service: j.root-servers.net start-period: '2014-06-21T00:00:00Z' end-period: '2014-06-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4046919396 dns-udp-queries-received-ipv6: 190962199 dns-tcp-queries-received-ipv4: 36954771 dns-tcp-queries-received-ipv6: 3102318 dns-udp-responses-sent-ipv4: 4051724925 dns-udp-responses-sent-ipv6: 190916959 dns-tcp-responses-sent-ipv4: 37284088 dns-tcp-responses-sent-ipv6: 2770223