--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6318149804 dns-udp-queries-received-ipv6: 344770883 dns-tcp-queries-received-ipv4: 102186282 dns-tcp-queries-received-ipv6: 15556004 dns-udp-responses-sent-ipv4: 6246207243 dns-udp-responses-sent-ipv6: 344618396 dns-tcp-responses-sent-ipv4: 102740251 dns-tcp-responses-sent-ipv6: 15594934