--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6800149622 dns-udp-queries-received-ipv6: 2331225505 dns-tcp-queries-received-ipv4: 425897944 dns-tcp-queries-received-ipv6: 181674821 dns-udp-responses-sent-ipv4: 6219896648 dns-udp-responses-sent-ipv6: 1875429414 dns-tcp-responses-sent-ipv4: 366690969 dns-tcp-responses-sent-ipv6: 132585551