--- version: rssac002v3 service: a.root-servers.net start-period: '2019-07-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6507086859 dns-udp-queries-received-ipv6: 1273179172 dns-tcp-queries-received-ipv4: 195657485 dns-tcp-queries-received-ipv6: 37793187 dns-udp-responses-sent-ipv4: 6358991173 dns-udp-responses-sent-ipv6: 1271955479 dns-tcp-responses-sent-ipv4: 191214977 dns-tcp-responses-sent-ipv6: 39199190