--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3583690608 dns-udp-queries-received-ipv6: 393192574 dns-tcp-queries-received-ipv4: 92448792 dns-tcp-queries-received-ipv6: 12915518 dns-udp-responses-sent-ipv4: 3581489116 dns-udp-responses-sent-ipv6: 393188756 dns-tcp-responses-sent-ipv4: 92789646 dns-tcp-responses-sent-ipv6: 13045757