--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7087870879 dns-udp-queries-received-ipv6: 1313456882 dns-tcp-queries-received-ipv4: 328017802 dns-tcp-queries-received-ipv6: 76334561 dns-udp-responses-sent-ipv4: 6814980448 dns-udp-responses-sent-ipv6: 1237559488 dns-tcp-responses-sent-ipv4: 314322303 dns-tcp-responses-sent-ipv6: 75976195