--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6700973103 dns-udp-queries-received-ipv6: 760770881 dns-tcp-queries-received-ipv4: 424380014 dns-tcp-queries-received-ipv6: 38619746 dns-udp-responses-sent-ipv4: 6315147154 dns-udp-responses-sent-ipv6: 758505023 dns-tcp-responses-sent-ipv4: 336511434 dns-tcp-responses-sent-ipv6: 36419150