--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-13T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7007958255 dns-udp-queries-received-ipv6: 1113567672 dns-tcp-queries-received-ipv4: 540141719 dns-tcp-queries-received-ipv6: 68848802 dns-udp-responses-sent-ipv4: 6535807859 dns-udp-responses-sent-ipv6: 1073061759 dns-tcp-responses-sent-ipv4: 401164454 dns-tcp-responses-sent-ipv6: 51081796