--- version: rssac002v3 service: a.root-servers.net start-period: '2021-02-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6024978537 dns-udp-queries-received-ipv6: 1223477652 dns-tcp-queries-received-ipv4: 283092092 dns-tcp-queries-received-ipv6: 113752959 dns-udp-responses-sent-ipv4: 5838165840 dns-udp-responses-sent-ipv6: 1222033732 dns-tcp-responses-sent-ipv4: 273475525 dns-tcp-responses-sent-ipv6: 113956862