--- version: rssac002v3 service: k.root-servers.net start-period: 2018-12-17T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 5067559665 dns-udp-queries-received-ipv6: 1087164941 dns-tcp-queries-received-ipv4: 109812816 dns-tcp-queries-received-ipv6: 19257368 dns-udp-responses-sent-ipv4: 5067058336 dns-udp-responses-sent-ipv6: 1086553679 dns-tcp-responses-sent-ipv4: 104449945 dns-tcp-responses-sent-ipv6: 17725623