--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6541575255 dns-udp-queries-received-ipv6: 775651127 dns-tcp-queries-received-ipv4: 429206147 dns-tcp-queries-received-ipv6: 54327153 dns-udp-responses-sent-ipv4: 6082830860 dns-udp-responses-sent-ipv6: 740874749 dns-tcp-responses-sent-ipv4: 280715840 dns-tcp-responses-sent-ipv6: 39342257