--- service: j.root-servers.net start-period: '2015-06-13T00:00:00Z' end-period: '2015-06-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2839245226 dns-udp-queries-received-ipv6: 211309983 dns-tcp-queries-received-ipv4: 27416145 dns-tcp-queries-received-ipv6: 21062475 dns-udp-responses-sent-ipv4: 2797411454 dns-udp-responses-sent-ipv6: 211218960 dns-tcp-responses-sent-ipv4: 26628865 dns-tcp-responses-sent-ipv6: 20154229