--- service: j.root-servers.net start-period: '2014-08-21T00:00:00Z' end-period: '2014-08-21T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3550844043 dns-udp-queries-received-ipv6: 217641941 dns-tcp-queries-received-ipv4: 29100974 dns-tcp-queries-received-ipv6: 4370234 dns-udp-responses-sent-ipv4: 3533084373 dns-udp-responses-sent-ipv6: 216800000 dns-tcp-responses-sent-ipv4: 30820784 dns-tcp-responses-sent-ipv6: 2291033