--- service: j.root-servers.net start-period: '2015-12-11T00:00:00Z' end-period: '2015-12-11T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4598035129 dns-udp-queries-received-ipv6: 576385323 dns-tcp-queries-received-ipv4: 117318021 dns-tcp-queries-received-ipv6: 2233258 dns-udp-responses-sent-ipv4: 4299796869 dns-udp-responses-sent-ipv6: 579284340 dns-tcp-responses-sent-ipv4: 107052732 dns-tcp-responses-sent-ipv6: 313350