--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6153855329 dns-udp-queries-received-ipv6: 1821761614 dns-tcp-queries-received-ipv4: 372050299 dns-tcp-queries-received-ipv6: 98914589 dns-udp-responses-sent-ipv4: 5838049223 dns-udp-responses-sent-ipv6: 1703854674 dns-tcp-responses-sent-ipv4: 324350772 dns-tcp-responses-sent-ipv6: 84974564