--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4203010763 dns-udp-queries-received-ipv6: 378797975 dns-tcp-queries-received-ipv4: 102197374 dns-tcp-queries-received-ipv6: 12578471 dns-udp-responses-sent-ipv4: 4200706601 dns-udp-responses-sent-ipv6: 378792041 dns-tcp-responses-sent-ipv4: 102416650 dns-tcp-responses-sent-ipv6: 12711962