--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5655431536 dns-udp-queries-received-ipv6: 1453345173 dns-tcp-queries-received-ipv4: 383274043 dns-tcp-queries-received-ipv6: 97424090 dns-udp-responses-sent-ipv4: 5346477387 dns-udp-responses-sent-ipv6: 1447215770 dns-tcp-responses-sent-ipv4: 300924288 dns-tcp-responses-sent-ipv6: 96524020