--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6610218447 dns-udp-queries-received-ipv6: 1409200160 dns-tcp-queries-received-ipv4: 183373927 dns-tcp-queries-received-ipv6: 34313539 dns-udp-responses-sent-ipv4: 6451080489 dns-udp-responses-sent-ipv6: 1408192865 dns-tcp-responses-sent-ipv4: 178320492 dns-tcp-responses-sent-ipv6: 35110284