--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4359253311 dns-udp-queries-received-ipv6: 477020706 dns-tcp-queries-received-ipv4: 195152268 dns-tcp-queries-received-ipv6: 8328501 dns-udp-responses-sent-ipv4: 4351678326 dns-udp-responses-sent-ipv6: 476876625 dns-tcp-responses-sent-ipv4: 195221098 dns-tcp-responses-sent-ipv6: 8465738