--- version: rssac002v3 service: a.root-servers.net start-period: '2020-04-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9061271948 dns-udp-queries-received-ipv6: 1570912978 dns-tcp-queries-received-ipv4: 326765661 dns-tcp-queries-received-ipv6: 142102778 dns-udp-responses-sent-ipv4: 8784156553 dns-udp-responses-sent-ipv6: 1542693322 dns-tcp-responses-sent-ipv4: 320254863 dns-tcp-responses-sent-ipv6: 139503813