--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6128555327 dns-udp-queries-received-ipv6: 1794448038 dns-tcp-queries-received-ipv4: 401156106 dns-tcp-queries-received-ipv6: 99869195 dns-udp-responses-sent-ipv4: 5753225799 dns-udp-responses-sent-ipv6: 1673290504 dns-tcp-responses-sent-ipv4: 335031727 dns-tcp-responses-sent-ipv6: 83676570