--- service: j.root-servers.net start-period: '2015-02-07T00:00:00Z' end-period: '2015-02-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3024474094 dns-udp-queries-received-ipv6: 274501654 dns-tcp-queries-received-ipv4: 22849873 dns-tcp-queries-received-ipv6: 2767525 dns-udp-responses-sent-ipv4: 3027451514 dns-udp-responses-sent-ipv6: 274509879 dns-tcp-responses-sent-ipv4: 22672401 dns-tcp-responses-sent-ipv6: 2108899