--- version: rssac002v4 service: a.root-servers.net start-period: '2023-01-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6412572866 dns-udp-queries-received-ipv6: 1834833800 dns-tcp-queries-received-ipv4: 396523582 dns-tcp-queries-received-ipv6: 107952055 dns-udp-responses-sent-ipv4: 6052333487 dns-udp-responses-sent-ipv6: 1717398228 dns-tcp-responses-sent-ipv4: 338465781 dns-tcp-responses-sent-ipv6: 91612534