--- version: rssac002v4 service: a.root-servers.net start-period: '2022-12-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6128643596 dns-udp-queries-received-ipv6: 1857020105 dns-tcp-queries-received-ipv4: 329153460 dns-tcp-queries-received-ipv6: 87793482 dns-udp-responses-sent-ipv4: 5946080324 dns-udp-responses-sent-ipv6: 1806507204 dns-tcp-responses-sent-ipv4: 295418509 dns-tcp-responses-sent-ipv6: 85507404