--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5126035578 dns-udp-queries-received-ipv6: 1358302887 dns-tcp-queries-received-ipv4: 298807388 dns-tcp-queries-received-ipv6: 71847652 dns-udp-responses-sent-ipv4: 4972454892 dns-udp-responses-sent-ipv6: 1356156841 dns-tcp-responses-sent-ipv4: 294512117 dns-tcp-responses-sent-ipv6: 72193508