--- version: rssac002v4 service: j.root-servers.net start-period: '2022-04-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5754828337 dns-udp-queries-received-ipv6: 1570749141 dns-tcp-queries-received-ipv4: 413435082 dns-tcp-queries-received-ipv6: 66229411 dns-udp-responses-sent-ipv4: 5320830271 dns-udp-responses-sent-ipv6: 1559316464 dns-tcp-responses-sent-ipv4: 271204400 dns-tcp-responses-sent-ipv6: 66122242