--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3976756060 dns-udp-queries-received-ipv6: 633855856 dns-tcp-queries-received-ipv4: 98765142 dns-tcp-queries-received-ipv6: 19030216 dns-udp-responses-sent-ipv4: 3676450264 dns-udp-responses-sent-ipv6: 633509104 dns-tcp-responses-sent-ipv4: 94751451 dns-tcp-responses-sent-ipv6: 19047057