--- service: j.root-servers.net start-period: '2014-04-01T00:00:00Z' end-period: '2014-04-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3119472333 dns-udp-queries-received-ipv6: 229937375 dns-tcp-queries-received-ipv4: 23905363 dns-tcp-queries-received-ipv6: 2903481 dns-udp-responses-sent-ipv4: 3061179521 dns-udp-responses-sent-ipv6: 229791617 dns-tcp-responses-sent-ipv4: 22402229 dns-tcp-responses-sent-ipv6: 230