--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7158190500 dns-udp-queries-received-ipv6: 2212909710 dns-tcp-queries-received-ipv4: 494647111 dns-tcp-queries-received-ipv6: 141282912 dns-udp-responses-sent-ipv4: 6537343062 dns-udp-responses-sent-ipv6: 1913643342 dns-tcp-responses-sent-ipv4: 419280672 dns-tcp-responses-sent-ipv6: 110296077