--- version: rssac002v3 service: j.root-servers.net start-period: '2019-12-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9149015782 dns-udp-queries-received-ipv6: 1195634727 dns-tcp-queries-received-ipv4: 754920890 dns-tcp-queries-received-ipv6: 115573726 dns-udp-responses-sent-ipv4: 8293183099 dns-udp-responses-sent-ipv6: 1161082821 dns-tcp-responses-sent-ipv4: 544241320 dns-tcp-responses-sent-ipv6: 101556889