--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4130764477 dns-udp-queries-received-ipv6: 429441902 dns-tcp-queries-received-ipv4: 163502707 dns-tcp-queries-received-ipv6: 8774392 dns-udp-responses-sent-ipv4: 4128613132 dns-udp-responses-sent-ipv6: 429264299 dns-tcp-responses-sent-ipv4: 163869022 dns-tcp-responses-sent-ipv6: 8861293