--- version: rssac002v3 service: a.root-servers.net start-period: '2017-07-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3963475632 dns-udp-queries-received-ipv6: 390015190 dns-tcp-queries-received-ipv4: 145203824 dns-tcp-queries-received-ipv6: 9918966 dns-udp-responses-sent-ipv4: 3962451492 dns-udp-responses-sent-ipv6: 389988373 dns-tcp-responses-sent-ipv4: 145074253 dns-tcp-responses-sent-ipv6: 10004348