--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4620510887 dns-udp-queries-received-ipv6: 1160880854 dns-tcp-queries-received-ipv4: 289031056 dns-tcp-queries-received-ipv6: 68940984 dns-udp-responses-sent-ipv4: 4486124443 dns-udp-responses-sent-ipv6: 1159257806 dns-tcp-responses-sent-ipv4: 285848336 dns-tcp-responses-sent-ipv6: 69305346