--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3565553962 dns-udp-queries-received-ipv6: 409948326 dns-tcp-queries-received-ipv4: 106104266 dns-tcp-queries-received-ipv6: 15950736 dns-udp-responses-sent-ipv4: 3560772173 dns-udp-responses-sent-ipv6: 409896480 dns-tcp-responses-sent-ipv4: 106173144 dns-tcp-responses-sent-ipv6: 16052135