--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6336385799 dns-udp-queries-received-ipv6: 1287753303 dns-tcp-queries-received-ipv4: 559066708 dns-tcp-queries-received-ipv6: 99423380 dns-udp-responses-sent-ipv4: 5865343052 dns-udp-responses-sent-ipv6: 1284745838 dns-tcp-responses-sent-ipv4: 391186571 dns-tcp-responses-sent-ipv6: 99302536