--- version: rssac002v3 service: j.root-servers.net start-period: '2018-01-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4216012999 dns-udp-queries-received-ipv6: 376858237 dns-tcp-queries-received-ipv4: 139414120 dns-tcp-queries-received-ipv6: 13044516 dns-udp-responses-sent-ipv4: 4136189784 dns-udp-responses-sent-ipv6: 374438138 dns-tcp-responses-sent-ipv4: 119155068 dns-tcp-responses-sent-ipv6: 13226727