--- version: rssac002v3 service: j.root-servers.net start-period: '2021-07-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6782641868 dns-udp-queries-received-ipv6: 1514107709 dns-tcp-queries-received-ipv4: 576891977 dns-tcp-queries-received-ipv6: 116651571 dns-udp-responses-sent-ipv4: 6287540567 dns-udp-responses-sent-ipv6: 1503638052 dns-tcp-responses-sent-ipv4: 403928177 dns-tcp-responses-sent-ipv6: 113215177