--- version: rssac002v3 service: j.root-servers.net start-period: '2019-04-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7155031816 dns-udp-queries-received-ipv6: 1036962073 dns-tcp-queries-received-ipv4: 487148482 dns-tcp-queries-received-ipv6: 71636955 dns-udp-responses-sent-ipv4: 6763416245 dns-udp-responses-sent-ipv6: 996008122 dns-tcp-responses-sent-ipv4: 376090455 dns-tcp-responses-sent-ipv6: 52497266