--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4183887233 dns-udp-queries-received-ipv6: 596427589 dns-tcp-queries-received-ipv4: 113276108 dns-tcp-queries-received-ipv6: 21771824 dns-udp-responses-sent-ipv4: 4074075576 dns-udp-responses-sent-ipv6: 596165684 dns-tcp-responses-sent-ipv4: 110017866 dns-tcp-responses-sent-ipv6: 21836906