--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5711268872 dns-udp-queries-received-ipv6: 1180604232 dns-tcp-queries-received-ipv4: 514275839 dns-tcp-queries-received-ipv6: 92471610 dns-udp-responses-sent-ipv4: 5270705060 dns-udp-responses-sent-ipv6: 1177481244 dns-tcp-responses-sent-ipv4: 359260136 dns-tcp-responses-sent-ipv6: 92309777