--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3512120248 dns-udp-queries-received-ipv6: 351111198 dns-tcp-queries-received-ipv4: 109004482 dns-tcp-queries-received-ipv6: 14645141 dns-udp-responses-sent-ipv4: 3433532909 dns-udp-responses-sent-ipv6: 350742599 dns-tcp-responses-sent-ipv4: 107338082 dns-tcp-responses-sent-ipv6: 14692955