--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7950376351 dns-udp-queries-received-ipv6: 1297404541 dns-tcp-queries-received-ipv4: 599975803 dns-tcp-queries-received-ipv6: 83936661 dns-udp-responses-sent-ipv4: 7394323172 dns-udp-responses-sent-ipv6: 1246566861 dns-tcp-responses-sent-ipv4: 433142292 dns-tcp-responses-sent-ipv6: 59370632