--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6457288884 dns-udp-queries-received-ipv6: 1374291183 dns-tcp-queries-received-ipv4: 242889198 dns-tcp-queries-received-ipv6: 154318763 dns-udp-responses-sent-ipv4: 6279051941 dns-udp-responses-sent-ipv6: 1366556898 dns-tcp-responses-sent-ipv4: 239642125 dns-tcp-responses-sent-ipv6: 154422357