--- version: rssac002v4 service: a.root-servers.net start-period: '2023-02-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6739926683 dns-udp-queries-received-ipv6: 2241815147 dns-tcp-queries-received-ipv4: 351162628 dns-tcp-queries-received-ipv6: 115271290 dns-udp-responses-sent-ipv4: 6246994292 dns-udp-responses-sent-ipv6: 1920729401 dns-tcp-responses-sent-ipv4: 289619900 dns-tcp-responses-sent-ipv6: 90977499