--- service: j.root-servers.net start-period: '2014-10-21T00:00:00Z' end-period: '2014-10-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3215221059 dns-udp-queries-received-ipv6: 233409270 dns-tcp-queries-received-ipv4: 28036820 dns-tcp-queries-received-ipv6: 3321649 dns-udp-responses-sent-ipv4: 3265997216 dns-udp-responses-sent-ipv6: 232984152 dns-tcp-responses-sent-ipv4: 28559183 dns-tcp-responses-sent-ipv6: 2797398