--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5192553685 dns-udp-queries-received-ipv6: 968748808 dns-tcp-queries-received-ipv4: 268895565 dns-tcp-queries-received-ipv6: 105567935 dns-udp-responses-sent-ipv4: 5042371656 dns-udp-responses-sent-ipv6: 966761382 dns-tcp-responses-sent-ipv4: 259977677 dns-tcp-responses-sent-ipv6: 105945339