--- version: rssac002v3 service: j.root-servers.net start-period: '2019-02-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6720724970 dns-udp-queries-received-ipv6: 764546234 dns-tcp-queries-received-ipv4: 436680861 dns-tcp-queries-received-ipv6: 38467468 dns-udp-responses-sent-ipv4: 6338023895 dns-udp-responses-sent-ipv6: 762201102 dns-tcp-responses-sent-ipv4: 337908310 dns-tcp-responses-sent-ipv6: 36748214