--- version: rssac002v3 service: a.root-servers.net start-period: '2020-06-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7893735549 dns-udp-queries-received-ipv6: 1576279348 dns-tcp-queries-received-ipv4: 252758736 dns-tcp-queries-received-ipv6: 88467156 dns-udp-responses-sent-ipv4: 7671111250 dns-udp-responses-sent-ipv6: 1574316609 dns-tcp-responses-sent-ipv4: 236289497 dns-tcp-responses-sent-ipv6: 89225901