--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6872690150 dns-udp-queries-received-ipv6: 892452525 dns-tcp-queries-received-ipv4: 268858368 dns-tcp-queries-received-ipv6: 71468568 dns-udp-responses-sent-ipv4: 6668015477 dns-udp-responses-sent-ipv6: 889281472 dns-tcp-responses-sent-ipv4: 246789385 dns-tcp-responses-sent-ipv6: 71716708