--- version: rssac002v4 service: a.root-servers.net start-period: '2024-05-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8364348045 dns-udp-queries-received-ipv6: 1603966415 dns-tcp-queries-received-ipv4: 323958355 dns-tcp-queries-received-ipv6: 53030798 dns-udp-responses-sent-ipv4: 8205342028 dns-udp-responses-sent-ipv6: 1588465760 dns-tcp-responses-sent-ipv4: 309080056 dns-tcp-responses-sent-ipv6: 47138468