--- service: j.root-servers.net start-period: '2016-12-15T00:00:00Z' end-period: '2016-12-15T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6979174656 dns-udp-queries-received-ipv6: 639664406 dns-tcp-queries-received-ipv4: 253900642 dns-tcp-queries-received-ipv6: 13325078 dns-udp-responses-sent-ipv4: 6821568031 dns-udp-responses-sent-ipv6: 650822072 dns-tcp-responses-sent-ipv4: 218195856 dns-tcp-responses-sent-ipv6: 13772855