--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7391342906 dns-udp-queries-received-ipv6: 1013215000 dns-tcp-queries-received-ipv4: 537607049 dns-tcp-queries-received-ipv6: 71195390 dns-udp-responses-sent-ipv4: 6896778623 dns-udp-responses-sent-ipv6: 971607803 dns-tcp-responses-sent-ipv4: 404264327 dns-tcp-responses-sent-ipv6: 52127114