--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5347032044 dns-udp-queries-received-ipv6: 1467349732 dns-tcp-queries-received-ipv4: 293127273 dns-tcp-queries-received-ipv6: 77543504 dns-udp-responses-sent-ipv4: 5344039909 dns-udp-responses-sent-ipv6: 1479033486 dns-tcp-responses-sent-ipv4: 289851095 dns-tcp-responses-sent-ipv6: 77373489