--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7181382452 dns-udp-queries-received-ipv6: 1202354604 dns-tcp-queries-received-ipv4: 548619879 dns-tcp-queries-received-ipv6: 73572358 dns-udp-responses-sent-ipv4: 6687889245 dns-udp-responses-sent-ipv6: 1158708912 dns-tcp-responses-sent-ipv4: 412293073 dns-tcp-responses-sent-ipv6: 53521778