--- version: rssac002v3 service: a.root-servers.net start-period: '2020-06-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7985121656 dns-udp-queries-received-ipv6: 1637177456 dns-tcp-queries-received-ipv4: 269759518 dns-tcp-queries-received-ipv6: 99261123 dns-udp-responses-sent-ipv4: 7763856959 dns-udp-responses-sent-ipv6: 1635490276 dns-tcp-responses-sent-ipv4: 253027668 dns-tcp-responses-sent-ipv6: 99754176