--- version: rssac002v4 service: a.root-servers.net start-period: '2023-04-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7545337615 dns-udp-queries-received-ipv6: 2309628375 dns-tcp-queries-received-ipv4: 512284108 dns-tcp-queries-received-ipv6: 139461154 dns-udp-responses-sent-ipv4: 6905296698 dns-udp-responses-sent-ipv6: 2010176697 dns-tcp-responses-sent-ipv4: 436919673 dns-tcp-responses-sent-ipv6: 108473161