--- version: rssac002v3 service: k.root-servers.net start-period: 2018-12-22T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 4564482602 dns-udp-queries-received-ipv6: 1031211204 dns-tcp-queries-received-ipv4: 98016881 dns-tcp-queries-received-ipv6: 18058705 dns-udp-responses-sent-ipv4: 4561268231 dns-udp-responses-sent-ipv6: 1030577793 dns-tcp-responses-sent-ipv4: 92533615 dns-tcp-responses-sent-ipv6: 16450574