--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6830123172 dns-udp-queries-received-ipv6: 1494338611 dns-tcp-queries-received-ipv4: 584397603 dns-tcp-queries-received-ipv6: 112710596 dns-udp-responses-sent-ipv4: 6327647425 dns-udp-responses-sent-ipv6: 1489659414 dns-tcp-responses-sent-ipv4: 410533245 dns-tcp-responses-sent-ipv6: 112341917