--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7442528838 dns-udp-queries-received-ipv6: 1134297556 dns-tcp-queries-received-ipv4: 579765305 dns-tcp-queries-received-ipv6: 70110696 dns-udp-responses-sent-ipv4: 6924117576 dns-udp-responses-sent-ipv6: 1092276399 dns-tcp-responses-sent-ipv4: 423255801 dns-tcp-responses-sent-ipv6: 51528095