--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7662315232 dns-udp-queries-received-ipv6: 2550324433 dns-tcp-queries-received-ipv4: 462999046 dns-tcp-queries-received-ipv6: 242364176 dns-udp-responses-sent-ipv4: 7048524837 dns-udp-responses-sent-ipv6: 2105425346 dns-tcp-responses-sent-ipv4: 403649184 dns-tcp-responses-sent-ipv6: 193173469