--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6620847814 dns-udp-queries-received-ipv6: 1347387865 dns-tcp-queries-received-ipv4: 622859144 dns-tcp-queries-received-ipv6: 94694388 dns-udp-responses-sent-ipv4: 6080917548 dns-udp-responses-sent-ipv6: 1331286492 dns-tcp-responses-sent-ipv4: 418566895 dns-tcp-responses-sent-ipv6: 89511837