--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5852609249 dns-udp-queries-received-ipv6: 1803990044 dns-tcp-queries-received-ipv4: 312014268 dns-tcp-queries-received-ipv6: 71100929 dns-udp-responses-sent-ipv4: 5688102622 dns-udp-responses-sent-ipv6: 1801475421 dns-tcp-responses-sent-ipv4: 284800658 dns-tcp-responses-sent-ipv6: 70782861