--- service: j.root-servers.net start-period: '2017-02-01T00:00:00Z' end-period: '2017-02-01T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6367145912 dns-udp-queries-received-ipv6: 628802291 dns-tcp-queries-received-ipv4: 169932497 dns-tcp-queries-received-ipv6: 12293509 dns-udp-responses-sent-ipv4: 6269588681 dns-udp-responses-sent-ipv6: 632426129 dns-tcp-responses-sent-ipv4: 157148216 dns-tcp-responses-sent-ipv6: 12439208