--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7325948184 dns-udp-queries-received-ipv6: 1028143633 dns-tcp-queries-received-ipv4: 508510099 dns-tcp-queries-received-ipv6: 73378370 dns-udp-responses-sent-ipv4: 6874857649 dns-udp-responses-sent-ipv6: 988058169 dns-tcp-responses-sent-ipv4: 393794527 dns-tcp-responses-sent-ipv6: 54910981