--- version: rssac002v3 service: j.root-servers.net start-period: '2018-04-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4562109231 dns-udp-queries-received-ipv6: 404427293 dns-tcp-queries-received-ipv4: 193028295 dns-tcp-queries-received-ipv6: 17641944 dns-udp-responses-sent-ipv4: 4470562190 dns-udp-responses-sent-ipv6: 401105989 dns-tcp-responses-sent-ipv4: 167913950 dns-tcp-responses-sent-ipv6: 17655519