--- version: rssac002v4 service: a.root-servers.net start-period: '2023-11-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8195941110 dns-udp-queries-received-ipv6: 1577329428 dns-tcp-queries-received-ipv4: 475439679 dns-tcp-queries-received-ipv6: 63139968 dns-udp-responses-sent-ipv4: 8021522461 dns-udp-responses-sent-ipv6: 1555179303 dns-tcp-responses-sent-ipv4: 458033472 dns-tcp-responses-sent-ipv6: 53212943