--- version: rssac002v4 service: a.root-servers.net start-period: '2023-05-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6511406866 dns-udp-queries-received-ipv6: 1921861172 dns-tcp-queries-received-ipv4: 441753125 dns-tcp-queries-received-ipv6: 206614929 dns-udp-responses-sent-ipv4: 6060380843 dns-udp-responses-sent-ipv6: 1614460214 dns-tcp-responses-sent-ipv4: 389369792 dns-tcp-responses-sent-ipv6: 171026725