--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6345064293 dns-udp-queries-received-ipv6: 1397193602 dns-tcp-queries-received-ipv4: 548841154 dns-tcp-queries-received-ipv6: 100916327 dns-udp-responses-sent-ipv4: 5865574275 dns-udp-responses-sent-ipv6: 1390257032 dns-tcp-responses-sent-ipv4: 378077343 dns-tcp-responses-sent-ipv6: 98961197