--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5340075575 dns-udp-queries-received-ipv6: 1146944177 dns-tcp-queries-received-ipv4: 283824198 dns-tcp-queries-received-ipv6: 116543066 dns-udp-responses-sent-ipv4: 5170665945 dns-udp-responses-sent-ipv6: 1144189755 dns-tcp-responses-sent-ipv4: 274023702 dns-tcp-responses-sent-ipv6: 116665027