--- version: rssac002v4 service: d.root-servers.net start-period: 2021-04-25T00:00:00Z end-period: 2021-04-25T23:59:59Z metric: traffic-volume dns-udp-queries-received-ipv4: 5378988646 dns-udp-queries-received-ipv6: 1522498873 dns-tcp-queries-received-ipv4: 198075595 dns-tcp-queries-received-ipv6: 100879521 dns-udp-responses-sent-ipv4: 5379035531 dns-udp-responses-sent-ipv6: 1522464333 dns-tcp-responses-sent-ipv4: 197957942 dns-tcp-responses-sent-ipv6: 100809648