--- service: j.root-servers.net start-period: '2015-01-02T00:00:00Z' end-period: '2015-01-02T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3467278248 dns-udp-queries-received-ipv6: 234375265 dns-tcp-queries-received-ipv4: 30144079 dns-tcp-queries-received-ipv6: 5360564 dns-udp-responses-sent-ipv4: 3467232245 dns-udp-responses-sent-ipv6: 234321974 dns-tcp-responses-sent-ipv4: 30233219 dns-tcp-responses-sent-ipv6: 4709544