--- version: rssac002v4 service: a.root-servers.net start-period: '2023-06-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6202808208 dns-udp-queries-received-ipv6: 1521555418 dns-tcp-queries-received-ipv4: 364948487 dns-tcp-queries-received-ipv6: 83200701 dns-udp-responses-sent-ipv4: 6048729041 dns-udp-responses-sent-ipv6: 1510578689 dns-tcp-responses-sent-ipv4: 356504602 dns-tcp-responses-sent-ipv6: 79400905