--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6565944019 dns-udp-queries-received-ipv6: 1129312853 dns-tcp-queries-received-ipv4: 367263556 dns-tcp-queries-received-ipv6: 160938555 dns-udp-responses-sent-ipv4: 6256773421 dns-udp-responses-sent-ipv6: 1006484351 dns-tcp-responses-sent-ipv4: 313501514 dns-tcp-responses-sent-ipv6: 98179739