--- version: rssac002v4 service: a.root-servers.net start-period: '2023-06-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6318591181 dns-udp-queries-received-ipv6: 1524412581 dns-tcp-queries-received-ipv4: 352355256 dns-tcp-queries-received-ipv6: 84573841 dns-udp-responses-sent-ipv4: 6165770031 dns-udp-responses-sent-ipv6: 1514035923 dns-tcp-responses-sent-ipv4: 344842961 dns-tcp-responses-sent-ipv6: 81140709