--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5643712880 dns-udp-queries-received-ipv6: 812350368 dns-tcp-queries-received-ipv4: 422264960 dns-tcp-queries-received-ipv6: 67546482 dns-udp-responses-sent-ipv4: 5284123434 dns-udp-responses-sent-ipv6: 770349212 dns-tcp-responses-sent-ipv4: 273066290 dns-tcp-responses-sent-ipv6: 46975636