--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6648932337 dns-udp-queries-received-ipv6: 2018497449 dns-tcp-queries-received-ipv4: 366613424 dns-tcp-queries-received-ipv6: 105288628 dns-udp-responses-sent-ipv4: 6308387959 dns-udp-responses-sent-ipv6: 1850778224 dns-tcp-responses-sent-ipv4: 324817854 dns-tcp-responses-sent-ipv6: 88474204