--- service: j.root-servers.net start-period: '2015-01-16T00:00:00Z' end-period: '2015-01-16T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3299972142 dns-udp-queries-received-ipv6: 254768176 dns-tcp-queries-received-ipv4: 29761962 dns-tcp-queries-received-ipv6: 5619789 dns-udp-responses-sent-ipv4: 3297107746 dns-udp-responses-sent-ipv6: 254693971 dns-tcp-responses-sent-ipv4: 29833081 dns-tcp-responses-sent-ipv6: 4782259