--- version: rssac002v3 service: j.root-servers.net start-period: '2018-09-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5220046310 dns-udp-queries-received-ipv6: 648654282 dns-tcp-queries-received-ipv4: 281582505 dns-tcp-queries-received-ipv6: 21922920 dns-udp-responses-sent-ipv4: 5001066690 dns-udp-responses-sent-ipv6: 646817304 dns-tcp-responses-sent-ipv4: 206698158 dns-tcp-responses-sent-ipv6: 21681319