--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6326522657 dns-udp-queries-received-ipv6: 726392746 dns-tcp-queries-received-ipv4: 507492608 dns-tcp-queries-received-ipv6: 37766432 dns-udp-responses-sent-ipv4: 5959389259 dns-udp-responses-sent-ipv6: 724026866 dns-tcp-responses-sent-ipv4: 369537900 dns-tcp-responses-sent-ipv6: 35822276