--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6730234708 dns-udp-queries-received-ipv6: 827488843 dns-tcp-queries-received-ipv4: 435321610 dns-tcp-queries-received-ipv6: 66652771 dns-udp-responses-sent-ipv4: 6247166294 dns-udp-responses-sent-ipv6: 784521610 dns-tcp-responses-sent-ipv4: 280578960 dns-tcp-responses-sent-ipv6: 44717429