--- version: rssac002v3 service: a.root-servers.net start-period: '2021-03-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4943441834 dns-udp-queries-received-ipv6: 1039186125 dns-tcp-queries-received-ipv4: 264060209 dns-tcp-queries-received-ipv6: 86212416 dns-udp-responses-sent-ipv4: 4779021402 dns-udp-responses-sent-ipv6: 1037743589 dns-tcp-responses-sent-ipv4: 253901574 dns-tcp-responses-sent-ipv6: 86571129