--- service: j.root-servers.net start-period: '2015-01-07T00:00:00Z' end-period: '2015-01-07T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3600890017 dns-udp-queries-received-ipv6: 254588296 dns-tcp-queries-received-ipv4: 30471781 dns-tcp-queries-received-ipv6: 5785032 dns-udp-responses-sent-ipv4: 3606617679 dns-udp-responses-sent-ipv6: 254533401 dns-tcp-responses-sent-ipv4: 30712193 dns-tcp-responses-sent-ipv6: 4841841