--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7175434510 dns-udp-queries-received-ipv6: 1030202916 dns-tcp-queries-received-ipv4: 486312899 dns-tcp-queries-received-ipv6: 73640840 dns-udp-responses-sent-ipv4: 6758374628 dns-udp-responses-sent-ipv6: 988119600 dns-tcp-responses-sent-ipv4: 376815395 dns-tcp-responses-sent-ipv6: 54010351