--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7899703493 dns-udp-queries-received-ipv6: 1310687461 dns-tcp-queries-received-ipv4: 763068776 dns-tcp-queries-received-ipv6: 73440414 dns-udp-responses-sent-ipv4: 7250137235 dns-udp-responses-sent-ipv6: 1269609428 dns-tcp-responses-sent-ipv4: 540502766 dns-tcp-responses-sent-ipv6: 53968801