--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6858611757 dns-udp-queries-received-ipv6: 1233322049 dns-tcp-queries-received-ipv4: 465447251 dns-tcp-queries-received-ipv6: 107577506 dns-udp-responses-sent-ipv4: 6510667284 dns-udp-responses-sent-ipv6: 1163053555 dns-tcp-responses-sent-ipv4: 347222295 dns-tcp-responses-sent-ipv6: 74117881