--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7129181757 dns-udp-queries-received-ipv6: 1110471882 dns-tcp-queries-received-ipv4: 547414531 dns-tcp-queries-received-ipv6: 69177146 dns-udp-responses-sent-ipv4: 6649453803 dns-udp-responses-sent-ipv6: 1069192332 dns-tcp-responses-sent-ipv4: 404024602 dns-tcp-responses-sent-ipv6: 50583865