--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7286476728 dns-udp-queries-received-ipv6: 1387017478 dns-tcp-queries-received-ipv4: 285673515 dns-tcp-queries-received-ipv6: 99644981 dns-udp-responses-sent-ipv4: 7000241469 dns-udp-responses-sent-ipv6: 1313111591 dns-tcp-responses-sent-ipv4: 274519612 dns-tcp-responses-sent-ipv6: 99452147