--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6634441798 dns-udp-queries-received-ipv6: 882190432 dns-tcp-queries-received-ipv4: 552164530 dns-tcp-queries-received-ipv6: 78976791 dns-udp-responses-sent-ipv4: 6206983899 dns-udp-responses-sent-ipv6: 837308319 dns-tcp-responses-sent-ipv4: 393187389 dns-tcp-responses-sent-ipv6: 57717467