--- service: j.root-servers.net start-period: '2014-07-21T00:00:00Z' end-period: '2014-07-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4858082478 dns-udp-queries-received-ipv6: 290023675 dns-tcp-queries-received-ipv4: 65706754 dns-tcp-queries-received-ipv6: 6402315 dns-udp-responses-sent-ipv4: 4869563764 dns-udp-responses-sent-ipv6: 289619793 dns-tcp-responses-sent-ipv4: 64602346 dns-tcp-responses-sent-ipv6: 3234221