--- version: rssac002v3 service: j.root-servers.net start-period: '2018-02-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4542724845 dns-udp-queries-received-ipv6: 351094191 dns-tcp-queries-received-ipv4: 172701518 dns-tcp-queries-received-ipv6: 13550964 dns-udp-responses-sent-ipv4: 4436747642 dns-udp-responses-sent-ipv6: 349123279 dns-tcp-responses-sent-ipv4: 147905181 dns-tcp-responses-sent-ipv6: 13531629