--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6004700668 dns-udp-queries-received-ipv6: 1329484459 dns-tcp-queries-received-ipv4: 396320930 dns-tcp-queries-received-ipv6: 109725915 dns-udp-responses-sent-ipv4: 5665185920 dns-udp-responses-sent-ipv6: 1322245233 dns-tcp-responses-sent-ipv4: 301869827 dns-tcp-responses-sent-ipv6: 109039449