--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6022015580 dns-udp-queries-received-ipv6: 1165015827 dns-tcp-queries-received-ipv4: 282493458 dns-tcp-queries-received-ipv6: 103602002 dns-udp-responses-sent-ipv4: 5851374398 dns-udp-responses-sent-ipv6: 1163494617 dns-tcp-responses-sent-ipv4: 271905348 dns-tcp-responses-sent-ipv6: 104275857