--- version: rssac002v4 service: a.root-servers.net start-period: '2023-06-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6551195128 dns-udp-queries-received-ipv6: 1541370506 dns-tcp-queries-received-ipv4: 361544147 dns-tcp-queries-received-ipv6: 75131974 dns-udp-responses-sent-ipv4: 6377670442 dns-udp-responses-sent-ipv6: 1531891836 dns-tcp-responses-sent-ipv4: 349775694 dns-tcp-responses-sent-ipv6: 72899108