--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3692236732 dns-udp-queries-received-ipv6: 635660793 dns-tcp-queries-received-ipv4: 102325153 dns-tcp-queries-received-ipv6: 19126664 dns-udp-responses-sent-ipv4: 3554532406 dns-udp-responses-sent-ipv6: 635392777 dns-tcp-responses-sent-ipv4: 98285839 dns-tcp-responses-sent-ipv6: 19147069