--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6436003214 dns-udp-queries-received-ipv6: 1464922101 dns-tcp-queries-received-ipv4: 562859207 dns-tcp-queries-received-ipv6: 148310914 dns-udp-responses-sent-ipv4: 5916911963 dns-udp-responses-sent-ipv6: 1458248252 dns-tcp-responses-sent-ipv4: 397320478 dns-tcp-responses-sent-ipv6: 150546474