--- version: rssac002v3 service: a.root-servers.net start-period: '2021-02-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5924268895 dns-udp-queries-received-ipv6: 1238588384 dns-tcp-queries-received-ipv4: 280054242 dns-tcp-queries-received-ipv6: 113044993 dns-udp-responses-sent-ipv4: 5740282501 dns-udp-responses-sent-ipv6: 1237146270 dns-tcp-responses-sent-ipv4: 271252987 dns-tcp-responses-sent-ipv6: 113267418