--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6038743108 dns-udp-queries-received-ipv6: 1325028239 dns-tcp-queries-received-ipv4: 415365782 dns-tcp-queries-received-ipv6: 100983890 dns-udp-responses-sent-ipv4: 5674819851 dns-udp-responses-sent-ipv6: 1320230640 dns-tcp-responses-sent-ipv4: 311776899 dns-tcp-responses-sent-ipv6: 101496687