--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7114526104 dns-udp-queries-received-ipv6: 2428785679 dns-tcp-queries-received-ipv4: 464491537 dns-tcp-queries-received-ipv6: 259346991 dns-udp-responses-sent-ipv4: 6515899395 dns-udp-responses-sent-ipv6: 2121722276 dns-tcp-responses-sent-ipv4: 395751814 dns-tcp-responses-sent-ipv6: 230338664