--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5090064729 dns-udp-queries-received-ipv6: 1303951254 dns-tcp-queries-received-ipv4: 296598195 dns-tcp-queries-received-ipv6: 72374462 dns-udp-responses-sent-ipv4: 4940982972 dns-udp-responses-sent-ipv6: 1301703805 dns-tcp-responses-sent-ipv4: 292800988 dns-tcp-responses-sent-ipv6: 72790452