--- version: rssac002v3 service: j.root-servers.net start-period: '2018-05-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4601997140 dns-udp-queries-received-ipv6: 538044926 dns-tcp-queries-received-ipv4: 228540947 dns-tcp-queries-received-ipv6: 18578356 dns-udp-responses-sent-ipv4: 4479398622 dns-udp-responses-sent-ipv6: 531013299 dns-tcp-responses-sent-ipv4: 187573666 dns-tcp-responses-sent-ipv6: 18478196