--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3430885488 dns-udp-queries-received-ipv6: 309607332 dns-tcp-queries-received-ipv4: 103040034 dns-tcp-queries-received-ipv6: 12893507 dns-udp-responses-sent-ipv4: 3353517906 dns-udp-responses-sent-ipv6: 308987249 dns-tcp-responses-sent-ipv4: 102698365 dns-tcp-responses-sent-ipv6: 12883999