--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6448611480 dns-udp-queries-received-ipv6: 2395097697 dns-tcp-queries-received-ipv4: 324000982 dns-tcp-queries-received-ipv6: 348531806 dns-udp-responses-sent-ipv4: 6268863595 dns-udp-responses-sent-ipv6: 2326466680 dns-tcp-responses-sent-ipv4: 307267226 dns-tcp-responses-sent-ipv6: 341210017