--- service: j.root-servers.net start-period: '2013-11-23T00:00:00Z' end-period: '2013-11-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2162373832 dns-udp-queries-received-ipv6: 108509877 dns-tcp-queries-received-ipv4: 21793710 dns-tcp-queries-received-ipv6: 3660333 dns-udp-responses-sent-ipv4: 2154817615 dns-udp-responses-sent-ipv6: 108483225 dns-tcp-responses-sent-ipv4: 22084040 dns-tcp-responses-sent-ipv6: 211