--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6329003498 dns-udp-queries-received-ipv6: 1874631444 dns-tcp-queries-received-ipv4: 382802652 dns-tcp-queries-received-ipv6: 95294596 dns-udp-responses-sent-ipv4: 6010167582 dns-udp-responses-sent-ipv6: 1751774605 dns-tcp-responses-sent-ipv4: 332834563 dns-tcp-responses-sent-ipv6: 82544282