--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4026710318 dns-udp-queries-received-ipv6: 494661005 dns-tcp-queries-received-ipv4: 113944335 dns-tcp-queries-received-ipv6: 18582480 dns-udp-responses-sent-ipv4: 3930567317 dns-udp-responses-sent-ipv6: 494280365 dns-tcp-responses-sent-ipv4: 110658410 dns-tcp-responses-sent-ipv6: 18585078