--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6602827032 dns-udp-queries-received-ipv6: 2019986307 dns-tcp-queries-received-ipv4: 388474333 dns-tcp-queries-received-ipv6: 99387296 dns-udp-responses-sent-ipv4: 6255401664 dns-udp-responses-sent-ipv6: 1876647819 dns-tcp-responses-sent-ipv4: 330989668 dns-tcp-responses-sent-ipv6: 83484201