--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4216004814 dns-udp-queries-received-ipv6: 438416081 dns-tcp-queries-received-ipv4: 111740462 dns-tcp-queries-received-ipv6: 14654852 dns-udp-responses-sent-ipv4: 4154541210 dns-udp-responses-sent-ipv6: 438024767 dns-tcp-responses-sent-ipv4: 111711197 dns-tcp-responses-sent-ipv6: 14718692