--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3921609583 dns-udp-queries-received-ipv6: 511521148 dns-tcp-queries-received-ipv4: 108975502 dns-tcp-queries-received-ipv6: 18777060 dns-udp-responses-sent-ipv4: 3827294250 dns-udp-responses-sent-ipv6: 511178617 dns-tcp-responses-sent-ipv4: 105562795 dns-tcp-responses-sent-ipv6: 18578448