--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8782958462 dns-udp-queries-received-ipv6: 1598327484 dns-tcp-queries-received-ipv4: 327927183 dns-tcp-queries-received-ipv6: 136328167 dns-udp-responses-sent-ipv4: 8538741840 dns-udp-responses-sent-ipv6: 1580989790 dns-tcp-responses-sent-ipv4: 321077428 dns-tcp-responses-sent-ipv6: 133481733