--- version: rssac002v3 service: a.root-servers.net start-period: '2020-06-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8270898870 dns-udp-queries-received-ipv6: 1575456376 dns-tcp-queries-received-ipv4: 264454823 dns-tcp-queries-received-ipv6: 82044771 dns-udp-responses-sent-ipv4: 8034745757 dns-udp-responses-sent-ipv6: 1573398888 dns-tcp-responses-sent-ipv4: 252427504 dns-tcp-responses-sent-ipv6: 82425579