--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5447948657 dns-udp-queries-received-ipv6: 1010784841 dns-tcp-queries-received-ipv4: 275622122 dns-tcp-queries-received-ipv6: 101939184 dns-udp-responses-sent-ipv4: 5294434333 dns-udp-responses-sent-ipv6: 1008502442 dns-tcp-responses-sent-ipv4: 265182758 dns-tcp-responses-sent-ipv6: 102482472