--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7634841292 dns-udp-queries-received-ipv6: 1038604818 dns-tcp-queries-received-ipv4: 260018876 dns-tcp-queries-received-ipv6: 74521597 dns-udp-responses-sent-ipv4: 7436316239 dns-udp-responses-sent-ipv6: 1036066844 dns-tcp-responses-sent-ipv4: 244998791 dns-tcp-responses-sent-ipv6: 74558630