--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6417713623 dns-udp-queries-received-ipv6: 1844586558 dns-tcp-queries-received-ipv4: 390100494 dns-tcp-queries-received-ipv6: 100576963 dns-udp-responses-sent-ipv4: 6065493629 dns-udp-responses-sent-ipv6: 1695592537 dns-tcp-responses-sent-ipv4: 332369155 dns-tcp-responses-sent-ipv6: 83148728