--- version: rssac002v4 service: a.root-servers.net start-period: '2023-03-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6841946956 dns-udp-queries-received-ipv6: 2098920518 dns-tcp-queries-received-ipv4: 425013644 dns-tcp-queries-received-ipv6: 122123563 dns-udp-responses-sent-ipv4: 6320224219 dns-udp-responses-sent-ipv6: 1790019678 dns-tcp-responses-sent-ipv4: 363945210 dns-tcp-responses-sent-ipv6: 95521003