--- version: rssac002v3 service: j.root-servers.net start-period: '2021-06-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6280443204 dns-udp-queries-received-ipv6: 1319668425 dns-tcp-queries-received-ipv4: 543829576 dns-tcp-queries-received-ipv6: 96688097 dns-udp-responses-sent-ipv4: 5811344540 dns-udp-responses-sent-ipv6: 1315234068 dns-tcp-responses-sent-ipv4: 383488032 dns-tcp-responses-sent-ipv6: 95953513