--- version: rssac002v4 service: j.root-servers.net start-period: '2021-12-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5880415432 dns-udp-queries-received-ipv6: 1332426405 dns-tcp-queries-received-ipv4: 368426435 dns-tcp-queries-received-ipv6: 105773368 dns-udp-responses-sent-ipv4: 5520162957 dns-udp-responses-sent-ipv6: 1301403444 dns-tcp-responses-sent-ipv4: 264738912 dns-tcp-responses-sent-ipv6: 100766736