--- version: rssac002v4 service: a.root-servers.net start-period: '2023-03-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6880050847 dns-udp-queries-received-ipv6: 2133073885 dns-tcp-queries-received-ipv4: 440524625 dns-tcp-queries-received-ipv6: 129374258 dns-udp-responses-sent-ipv4: 6347110254 dns-udp-responses-sent-ipv6: 1825486246 dns-tcp-responses-sent-ipv4: 378596797 dns-tcp-responses-sent-ipv6: 104091440