--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6286553738 dns-udp-queries-received-ipv6: 764365529 dns-tcp-queries-received-ipv4: 422288045 dns-tcp-queries-received-ipv6: 60559799 dns-udp-responses-sent-ipv4: 5827621533 dns-udp-responses-sent-ipv6: 730302624 dns-tcp-responses-sent-ipv4: 268470751 dns-tcp-responses-sent-ipv6: 43281184