--- service: j.root-servers.net start-period: '2013-12-24T00:00:00Z' end-period: '2013-12-24T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2498021012 dns-udp-queries-received-ipv6: 155191006 dns-tcp-queries-received-ipv4: 21070529 dns-tcp-queries-received-ipv6: 2272968 dns-udp-responses-sent-ipv4: 2491924979 dns-udp-responses-sent-ipv6: 155156110 dns-tcp-responses-sent-ipv4: 20237344 dns-tcp-responses-sent-ipv6: 337