--- version: rssac002v4 service: j.root-servers.net start-period: '2021-11-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5273899414 dns-udp-queries-received-ipv6: 1105193701 dns-tcp-queries-received-ipv4: 385187852 dns-tcp-queries-received-ipv6: 60717132 dns-udp-responses-sent-ipv4: 4895758460 dns-udp-responses-sent-ipv6: 1075119762 dns-tcp-responses-sent-ipv4: 257878657 dns-tcp-responses-sent-ipv6: 58566135