--- service: j.root-servers.net start-period: '2014-07-20T00:00:00Z' end-period: '2014-07-20T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4507956814 dns-udp-queries-received-ipv6: 273811575 dns-tcp-queries-received-ipv4: 55412841 dns-tcp-queries-received-ipv6: 6445251 dns-udp-responses-sent-ipv4: 4536135549 dns-udp-responses-sent-ipv6: 273460039 dns-tcp-responses-sent-ipv4: 56912175 dns-tcp-responses-sent-ipv6: 3360946