--- service: j.root-servers.net start-period: '2015-07-26T00:00:00Z' end-period: '2015-07-26T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4088623912 dns-udp-queries-received-ipv6: 275312039 dns-tcp-queries-received-ipv4: 33329831 dns-tcp-queries-received-ipv6: 25674177 dns-udp-responses-sent-ipv4: 3481140168 dns-udp-responses-sent-ipv6: 275577628 dns-tcp-responses-sent-ipv4: 32523252 dns-tcp-responses-sent-ipv6: 24082096