--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7646283576 dns-udp-queries-received-ipv6: 1334898742 dns-tcp-queries-received-ipv4: 508430664 dns-tcp-queries-received-ipv6: 119640523 dns-udp-responses-sent-ipv4: 7261592263 dns-udp-responses-sent-ipv6: 1253411304 dns-tcp-responses-sent-ipv4: 377510740 dns-tcp-responses-sent-ipv6: 80814539