--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7038389423 dns-udp-queries-received-ipv6: 1216287975 dns-tcp-queries-received-ipv4: 424156446 dns-tcp-queries-received-ipv6: 80325491 dns-udp-responses-sent-ipv4: 6574222325 dns-udp-responses-sent-ipv6: 1169042099 dns-tcp-responses-sent-ipv4: 333831215 dns-tcp-responses-sent-ipv6: 57479674