--- version: rssac002v4 service: j.root-servers.net start-period: '2021-10-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5972353425 dns-udp-queries-received-ipv6: 1285213048 dns-tcp-queries-received-ipv4: 445304273 dns-tcp-queries-received-ipv6: 80848703 dns-udp-responses-sent-ipv4: 5583270725 dns-udp-responses-sent-ipv6: 1279632171 dns-tcp-responses-sent-ipv4: 316165296 dns-tcp-responses-sent-ipv6: 80874561