--- version: rssac002v3 service: j.root-servers.net start-period: '2021-02-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6442937717 dns-udp-queries-received-ipv6: 1390421112 dns-tcp-queries-received-ipv4: 504303856 dns-tcp-queries-received-ipv6: 109580289 dns-udp-responses-sent-ipv4: 5924176291 dns-udp-responses-sent-ipv6: 1375748957 dns-tcp-responses-sent-ipv4: 357093033 dns-tcp-responses-sent-ipv6: 106135183