--- service: j.root-servers.net start-period: '2013-12-09T00:00:00Z' end-period: '2013-12-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2531447278 dns-udp-queries-received-ipv6: 151246890 dns-tcp-queries-received-ipv4: 25754323 dns-tcp-queries-received-ipv6: 4134080 dns-udp-responses-sent-ipv4: 2525138483 dns-udp-responses-sent-ipv6: 151190900 dns-tcp-responses-sent-ipv4: 21414276 dns-tcp-responses-sent-ipv6: 215