--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6990509868 dns-udp-queries-received-ipv6: 1286510966 dns-tcp-queries-received-ipv4: 201263853 dns-tcp-queries-received-ipv6: 30797768 dns-udp-responses-sent-ipv4: 6785626097 dns-udp-responses-sent-ipv6: 1285949270 dns-tcp-responses-sent-ipv4: 196516118 dns-tcp-responses-sent-ipv6: 31419906