--- version: rssac002v4 service: j.root-servers.net start-period: '2021-11-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6113916872 dns-udp-queries-received-ipv6: 1300257109 dns-tcp-queries-received-ipv4: 515614466 dns-tcp-queries-received-ipv6: 85134806 dns-udp-responses-sent-ipv4: 5593474660 dns-udp-responses-sent-ipv6: 1261436820 dns-tcp-responses-sent-ipv4: 344018302 dns-tcp-responses-sent-ipv6: 80758627