--- version: rssac002v3 service: j.root-servers.net start-period: '2019-06-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7295040978 dns-udp-queries-received-ipv6: 1393272980 dns-tcp-queries-received-ipv4: 410802194 dns-tcp-queries-received-ipv6: 110454946 dns-udp-responses-sent-ipv4: 6812063580 dns-udp-responses-sent-ipv6: 1316009063 dns-tcp-responses-sent-ipv4: 325310642 dns-tcp-responses-sent-ipv6: 73425490