--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5027088928 dns-udp-queries-received-ipv6: 1319425961 dns-tcp-queries-received-ipv4: 320287673 dns-tcp-queries-received-ipv6: 93811638 dns-udp-responses-sent-ipv4: 4875486269 dns-udp-responses-sent-ipv6: 1316609202 dns-tcp-responses-sent-ipv4: 316135950 dns-tcp-responses-sent-ipv6: 93953929