--- version: rssac002v3 service: k.root-servers.net start-period: 2018-12-25T00:00:00Z metric: traffic-volume dns-udp-queries-received-ipv4: 4574611948 dns-udp-queries-received-ipv6: 1036629389 dns-tcp-queries-received-ipv4: 93557750 dns-tcp-queries-received-ipv6: 19590594 dns-udp-responses-sent-ipv4: 4573460289 dns-udp-responses-sent-ipv6: 1035954119 dns-tcp-responses-sent-ipv4: 88654900 dns-tcp-responses-sent-ipv6: 17866862