--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6759035879 dns-udp-queries-received-ipv6: 1585323517 dns-tcp-queries-received-ipv4: 632785292 dns-tcp-queries-received-ipv6: 151050012 dns-udp-responses-sent-ipv4: 6227976502 dns-udp-responses-sent-ipv6: 1573852050 dns-tcp-responses-sent-ipv4: 448835461 dns-tcp-responses-sent-ipv6: 147381151