--- version: rssac002v3 service: j.root-servers.net start-period: '2021-02-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6377962008 dns-udp-queries-received-ipv6: 1303046884 dns-tcp-queries-received-ipv4: 580839892 dns-tcp-queries-received-ipv6: 89325103 dns-udp-responses-sent-ipv4: 5859942897 dns-udp-responses-sent-ipv6: 1298766945 dns-tcp-responses-sent-ipv4: 393227652 dns-tcp-responses-sent-ipv6: 89605324