--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6953530784 dns-udp-queries-received-ipv6: 2429645025 dns-tcp-queries-received-ipv4: 451829631 dns-tcp-queries-received-ipv6: 250839210 dns-udp-responses-sent-ipv4: 6339735390 dns-udp-responses-sent-ipv6: 2029988724 dns-tcp-responses-sent-ipv4: 392194955 dns-tcp-responses-sent-ipv6: 221412023