--- service: j.root-servers.net start-period: '2013-12-10T00:00:00Z' end-period: '2013-12-10T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2568236166 dns-udp-queries-received-ipv6: 149750038 dns-tcp-queries-received-ipv4: 24408915 dns-tcp-queries-received-ipv6: 4085312 dns-udp-responses-sent-ipv4: 2561049475 dns-udp-responses-sent-ipv6: 149695659 dns-tcp-responses-sent-ipv4: 22172646 dns-tcp-responses-sent-ipv6: 178