--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6807432076 dns-udp-queries-received-ipv6: 1279411471 dns-tcp-queries-received-ipv4: 396675947 dns-tcp-queries-received-ipv6: 110014543 dns-udp-responses-sent-ipv4: 6307389516 dns-udp-responses-sent-ipv6: 1202465318 dns-tcp-responses-sent-ipv4: 311431574 dns-tcp-responses-sent-ipv6: 72937814