--- version: rssac002v4 service: a.root-servers.net start-period: '2023-09-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6692969781 dns-udp-queries-received-ipv6: 1644831885 dns-tcp-queries-received-ipv4: 373556499 dns-tcp-queries-received-ipv6: 55435271 dns-udp-responses-sent-ipv4: 6536190369 dns-udp-responses-sent-ipv6: 1632479656 dns-tcp-responses-sent-ipv4: 359428486 dns-tcp-responses-sent-ipv6: 51761120