--- version: rssac002v3 service: j.root-servers.net start-period: '2018-04-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5171194496 dns-udp-queries-received-ipv6: 437801312 dns-tcp-queries-received-ipv4: 212699851 dns-tcp-queries-received-ipv6: 18654759 dns-udp-responses-sent-ipv4: 5061179404 dns-udp-responses-sent-ipv6: 434880764 dns-tcp-responses-sent-ipv4: 178880427 dns-tcp-responses-sent-ipv6: 18634508