--- service: j.root-servers.net start-period: '2015-06-02T00:00:00Z' end-period: '2015-06-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3239383363 dns-udp-queries-received-ipv6: 214269735 dns-tcp-queries-received-ipv4: 27579356 dns-tcp-queries-received-ipv6: 6457390 dns-udp-responses-sent-ipv4: 3165982792 dns-udp-responses-sent-ipv6: 214179464 dns-tcp-responses-sent-ipv4: 27013182 dns-tcp-responses-sent-ipv6: 4600083