--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9101718793 dns-udp-queries-received-ipv6: 1564668549 dns-tcp-queries-received-ipv4: 348646760 dns-tcp-queries-received-ipv6: 140519200 dns-udp-responses-sent-ipv4: 8842524409 dns-udp-responses-sent-ipv6: 1558606067 dns-tcp-responses-sent-ipv4: 345012203 dns-tcp-responses-sent-ipv6: 140622669