--- version: rssac002v3 service: j.root-servers.net start-period: '2021-03-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7037158338 dns-udp-queries-received-ipv6: 1511312817 dns-tcp-queries-received-ipv4: 577944644 dns-tcp-queries-received-ipv6: 111968469 dns-udp-responses-sent-ipv4: 6480298986 dns-udp-responses-sent-ipv6: 1488124162 dns-tcp-responses-sent-ipv4: 404006343 dns-tcp-responses-sent-ipv6: 103566963