--- service: j.root-servers.net start-period: '2014-12-15T00:00:00Z' end-period: '2014-12-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2975853976 dns-udp-queries-received-ipv6: 228352447 dns-tcp-queries-received-ipv4: 28743295 dns-tcp-queries-received-ipv6: 5563820 dns-udp-responses-sent-ipv4: 2976891570 dns-udp-responses-sent-ipv6: 228321360 dns-tcp-responses-sent-ipv4: 28790471 dns-tcp-responses-sent-ipv6: 5457344