--- version: rssac002v3 service: j.root-servers.net start-period: '2018-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5076824284 dns-udp-queries-received-ipv6: 531868908 dns-tcp-queries-received-ipv4: 285534741 dns-tcp-queries-received-ipv6: 18031008 dns-udp-responses-sent-ipv4: 4866049108 dns-udp-responses-sent-ipv6: 480003218 dns-tcp-responses-sent-ipv4: 214926037 dns-tcp-responses-sent-ipv6: 18129937