--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6369862749 dns-udp-queries-received-ipv6: 1206726602 dns-tcp-queries-received-ipv4: 203452574 dns-tcp-queries-received-ipv6: 34267441 dns-udp-responses-sent-ipv4: 6209975984 dns-udp-responses-sent-ipv6: 1205455128 dns-tcp-responses-sent-ipv4: 197340081 dns-tcp-responses-sent-ipv6: 35001670