--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5251009538 dns-udp-queries-received-ipv6: 376207174 dns-tcp-queries-received-ipv4: 110624439 dns-tcp-queries-received-ipv6: 12693183 dns-udp-responses-sent-ipv4: 5248634927 dns-udp-responses-sent-ipv6: 376181219 dns-tcp-responses-sent-ipv4: 112073696 dns-tcp-responses-sent-ipv6: 12824192