--- version: rssac002v3 service: j.root-servers.net start-period: '2018-01-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4530272613 dns-udp-queries-received-ipv6: 404995450 dns-tcp-queries-received-ipv4: 169374537 dns-tcp-queries-received-ipv6: 12882537 dns-udp-responses-sent-ipv4: 4452042892 dns-udp-responses-sent-ipv6: 403300365 dns-tcp-responses-sent-ipv4: 150468021 dns-tcp-responses-sent-ipv6: 13129275