--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7130539239 dns-udp-queries-received-ipv6: 2731021950 dns-tcp-queries-received-ipv4: 438303373 dns-tcp-queries-received-ipv6: 320602326 dns-udp-responses-sent-ipv4: 6529837119 dns-udp-responses-sent-ipv6: 2267241803 dns-tcp-responses-sent-ipv4: 377535973 dns-tcp-responses-sent-ipv6: 271726262