--- version: rssac002v3 service: j.root-servers.net start-period: '2018-04-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4817767052 dns-udp-queries-received-ipv6: 540637998 dns-tcp-queries-received-ipv4: 197774249 dns-tcp-queries-received-ipv6: 17178262 dns-udp-responses-sent-ipv4: 4718731139 dns-udp-responses-sent-ipv6: 537495259 dns-tcp-responses-sent-ipv4: 167502990 dns-tcp-responses-sent-ipv6: 17152068