--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6916921637 dns-udp-queries-received-ipv6: 1565255241 dns-tcp-queries-received-ipv4: 577716806 dns-tcp-queries-received-ipv6: 107312779 dns-udp-responses-sent-ipv4: 6428916760 dns-udp-responses-sent-ipv6: 1548319479 dns-tcp-responses-sent-ipv4: 406899444 dns-tcp-responses-sent-ipv6: 102077405