--- version: rssac002v3 service: j.root-servers.net start-period: '2018-05-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4746825148 dns-udp-queries-received-ipv6: 512385038 dns-tcp-queries-received-ipv4: 239486880 dns-tcp-queries-received-ipv6: 18116365 dns-udp-responses-sent-ipv4: 4582701093 dns-udp-responses-sent-ipv6: 506624142 dns-tcp-responses-sent-ipv4: 180445880 dns-tcp-responses-sent-ipv6: 18142056