--- version: rssac002v4 service: a.root-servers.net start-period: '2023-02-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6503746858 dns-udp-queries-received-ipv6: 2301736373 dns-tcp-queries-received-ipv4: 360117824 dns-tcp-queries-received-ipv6: 146514893 dns-udp-responses-sent-ipv4: 5973608758 dns-udp-responses-sent-ipv6: 1917546672 dns-tcp-responses-sent-ipv4: 290523187 dns-tcp-responses-sent-ipv6: 110012359