--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7749539306 dns-udp-queries-received-ipv6: 1310236286 dns-tcp-queries-received-ipv4: 431773462 dns-tcp-queries-received-ipv6: 107631015 dns-udp-responses-sent-ipv4: 7242268713 dns-udp-responses-sent-ipv6: 1234583014 dns-tcp-responses-sent-ipv4: 338693257 dns-tcp-responses-sent-ipv6: 71537453