--- version: rssac002v4 service: a.root-servers.net start-period: '2023-12-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7984865190 dns-udp-queries-received-ipv6: 1643747693 dns-tcp-queries-received-ipv4: 421947552 dns-tcp-queries-received-ipv6: 83936530 dns-udp-responses-sent-ipv4: 7797537448 dns-udp-responses-sent-ipv6: 1596774775 dns-tcp-responses-sent-ipv4: 396528471 dns-tcp-responses-sent-ipv6: 63236539